Answer:
The answer to your question is: x = - 1 / 8
Step-by-step explanation:
8( 1 - 5x ) = 13
8 - 40x = 13
- 40x = 13 - 8
- 40x = 5
x = - 5 / 40
x = - 1 / 8
Let’s use PEMDAS
P: there are no parenthesis
E: the exponents need to be solved
4^2-5x2^3
16-5x8
M: we need to multiply 5 and 8
16-40
now we just need to do the rest
16-40=-24
-24 is your answer
For this case we have that the surface area of the prism is given by:

Where:
: Is the lateral area
B: It is the area of the base

Where:
Q: It is the perimeter of the base
h: It's the height

On the other hand:

So, we have:

Answer:

146.82+ 84.27=231.09-19.12=211.97-31.86=180.11 remaining in his checking account