Answer:
1/4 b^9
Step-by-step explanation:
(b^11 b^-7)/4b^-5
We know x^y * x^z = x^(y+z)
b^11 * b^ -7 = b^ (11-7) = b^4
(b^11 b^-7)/4b^-5
b^4 / 4 b^-5
We know x^y / x^z = x^(y-z(
b^4 / b^-5 = b^(4 - -5) = b^(4+5) = b^9
1/4 b^9
1) 9+4a-36+21-6a 2) -2a-6 3) -2a=6 4) a=-3
Answer: 20 lawns
Multiply each by 5 times for 20 yay woo hoo
Sorry the lines aren’t straight!
