The river is 310 miles long
the race is 42 miles only off those 310
how many times is 310 "more" than 42?
Answer:
X=5,-2
Steps:
Get everything to the same side:
X^2-3x-10=0
Then factor:
(X-5)(x+2)=0
Y^-9 * b = y^45 Divide by y^-9
b =

The law of powers says that if you have the same base (y in this case) and two different powers that are divided, you can subtract the denominator from the numerator (in this case)
b =