First Question:
Number of trapezoids - 6
Perimeter - 72
3 + 3 + 3 + 6 = 15
3 + 3 + 3 + 3 + 6 + 6 = 24
3 + 3 + 6 + 3 + 3 + 6 + 3 + 6 = 33
15 + 24 + 33 = 72
Second Question:
Number of cubes - 6
Surface area - 24 (probably 480 since it said area)
first cube - 6 ones
second cube - 8 ones
Third cube - 10 ones
you could do 6 + 8 + 10 = 24 or add up all the ones (1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1) and you will still get 24
(It said area, and area means to multiply so maybe its 6 x 8 x 10 = 480 and not 6 + 8 + 10)
Anyways have a good day/night :) I might be wrong, but I hope I helped at least a little