144x12= 1728
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In order to solve a negative exponent, you have to consider the multiplicative inverse of the base:

So, if we solve the negative exponent on the left hand side, we have

which is the right hand side.
Answer: intercept is 2/5 slope is (0,9)
Answer:
320 cm [125.984 inches]
Step-by-step explanation:
A(l) = (a+b+c) x h
h=20
a=3
b=8
c=5
A(l) = (3+5+8) x 20
A(l) = 320