This is so confusing I don't understand how to do it!

494 square feet

494 ft^2

Step-by-step explanation:

Trapezoid:

(20 + 32) ÷ 2 ) × 3

52 ÷ 2 ) × 3

26 × 3

= 78

Rectangle:

32 × 13 = 416

Add:

78 + 416 = 494

b) 36

step-by-step explanation:

18 times 2 is 36

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.