Answer:
x = -8
Step-by-step explanation:
Given the equation:

Note that

then

Rewrite the equation as

then

Answer: =296
Step-by-step explanation: −2*4=-8+20=28*3=84+48=132*2=164−2=162*4+20*3+48*2= 296
Constant rate means its the same rate and didn't change over time
A is 23 and the answer to b is 77
The interest is simple
A=5,200×(1+0.04×5)
A=6,240