Map, Keep, and Combine Self Check

Try to reason through these problems without making the blocks in snap But if you'd like them, clicking on the images below will open a project containing these variables.
set (squares) to {1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225}
set (words and numbers) to {rabbit, 5, benefit, is, 34, kite, 2, 305, the, 61}
set (capitals) to {{Augusta, Maine}, {Boise, Idaho}, {Columbia, South Carolina}, {Des Moines, Iowa}}

Use the list of squares:
set (squares) to {1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225}
Which of these expressions will report a list?
Choose all that apply.

map (sqrt of()) over (squares)
keep items such that (()mod(2)=0) from (squares)
combine with (()+()) items of (squares)
keep items such that (letter (length of ()) of () = 1) from (squares)
map (()+()) over (squares)
combine with (join ()()) items of (squares)
map ((0)-()) over (squares)
map (()-()) over (squares)

The expressions in this problem are the same as you saw in question 1.
Which of these statements are true?
Choose all that apply.

keep items such that (()mod(2)=0) from (squares) reports a list with only even square numbers.
combine with (()+()) items of (squares) and map (()+()) over (squares) report the same result.
keep items such that ((letter (length of ()) of ())=1) from (squares) reports the list {1, 16, 100, 121, 144, 169, and 196}.
combine with (()+()) items of (squares) and combine with (join ()()) items of (squares) report the same result.
map ((0)-()) over (squares) and map (()-()) over (squares) both report a list with negative values.

Use the list of words and numbers:
set (words and numbers) to {rabbit, 5, benefit, is, 34, kite, 2, 305, the, 61}
Which of these expressions produce the list with just the numbers: {5, 34, 2, 305, 61}?
Choose all that apply.

map (is () a (number)?) over (words and numbers)
keep items such that (is () a (number)?) from (words and numbers)

This question refers to these two lists:
set (words and numbers) to {rabbit, 5, benefit, is, 34, kite, 2, 305, the, 61}
set (capitals) to {{Augusta, Maine}, {Boise, Idaho}, {Columbia, South Carolina}, {Des Moines, Iowa}}
Which of these statements are true?
Choose all that apply.

map (letter (1) of ()) over (words and numbers) reports the list {r, 5, b, i, 3, k, 2, 3, t, 6}.
map (item (1) of ()) over (words and numbers) reports the list {rabbit}.
map (item (1) of ()) over (capitals) reports the list {Augusta, Boise, Columbia, Des Moines}.
map (letter (1) of ()) over (capitals) reports the list {A, B, C, D}.
map (all but first of () over (capitals) reports the list {Maine, Idaho, South Carolina, Iowa}.

Which of the following expressions will report:
{{Augusta, Maine is beautiful.}, {Boise, Idaho is beautiful.}, {Columbia, South Carolina is beautiful.}, {Des Moines, Iowa is beautiful.}}
Choose all that apply.

map (join (item (1) of ()) (, ) (item (2) of ()) ( is beautiful.)) over (capitals)
combine with (join () (, ) () ( is beautiful.)) items of (capitals)
map (combine with (join () (, ) () ( is beautiful.)) items of ()) over (capitals)