Answer:
-5
Step-by-step explanation:
Using rules of exponents we can change this equation to
y ^ (-9 * b) = y^45
-9*b = 45
b = -5
The correct answer is - 5
38%
$600 is 100%
$60 is 10%
$6 is 1%
3 60s go into 228 with 48 still left.
6 times 8 is 48.
So its 38%.
x=75
I hope it's helps you