Answer: B
Step-by-step explanation:
Answer:
y=5*3^x
y=5*3^(-1) =5/3
y=5*3^0=5*1=5
y=5*3^1=5*3=15
.
Hence, they are equivalent.
47
$460 + $90 = $550
4 x $20 = $80
$550 - $80 = $470
$470/10 = 47
they have to wash 47 cars
