Answer:
because after decimal then value 0 dont have meaning
Savings Account: x+20
Checking Account:x-40
120 is the y intercept in the formula y=mx+b
hope this helped!!
B
Step-by-step explanation:
Trust
x = -4, so use the first equation, x^2 = -4^2 = -16
x = 4, use 3rd equation, sqrt(x) = sqrt(4) = 2
