Please answer correctly, will give brainlist.

the answer is 77

Step-by-step explanation:

A measures 32 and B measures 109 so you subtract 109 and 32 and your answer will be 77

There are three unique sides to a rectangular prism. To find the surface area, we can find the area of each unique side and double it.

Side 1:

4 x 7 = 28

28 x 2 = 56

Side 2:

7 x 9 = 63

63 x 2 = 126

Side 3:

4 x 9 = 36

36 x 2 = 72

The surface area is the sum of all of the doubled areas of the individual slides.

SA = 56 + 126 + 72

SA = 254 in^2

Hope this helps!! :)