Answer:
63
Step-by-step explanation:
90+13x+1+28x+7=180
98+41x=180
41x=82
x=2
Plugging in the value of x, we get:
28x+7=28(2)+7=56+7=63
500=140+40h
minus 140 both sides
360=40h
divide y 40
9=h
9 hours
It would b 9 x (-3^(x-1))
Answer:
-2
Step-by-step explanation:
m=