Step-by-step explanation:
9x - 2x = 8 + 5
7x = 13
x =13÷7
x = 1.8571
approximately = 1.86
I think this is it
Answer:
The surface area of the square pyramid is 
Step-by-step explanation:
we know that
The surface area of the square pyramid is equal to

where
B is the area of the base
P is the perimeter of the base
h is the height of the pyramid
<u>Find the area of the base B</u>

<u>Find the perimeter of the base P</u>

The height is 
substitute the values

25x6= 150 so he cant paint 150 square feet every half hour.