Answer:
Question A: Seccond and fourth selection
(36x-20) and (4*9x-4*5)
Question B: First and third selection
(15y) and (7y+8y)
Explanation: for the first part you want to distribute meaning multiplying 4 on each number in the parentheses. 4*9x will equal 36x and 4*5 will equal 20. Keep the sign the same in the parentheses and it will look like: 36x-20. Now you want to find numbers that are equal to 36x-20 do this by multiplying like terms meaning you can add numbers with the same variable( letter).
Part B: you want to add up all the terms. You can do this by adding all the numbers with the same variable(letters)
Meaning you will add 7y+3y+5y this will equal to 15y all together. Now you want to find numbers that equal to 15y don’t forget there are other answers this is the other one: 7y+8y together this also makes 15 so it’s an equivalent expression.
Hope this helps you :)