Steps:
1) st / 6r
2) 32*45 / 6*5
3) 1440 / 30
4) Answer = 48
(Extra: / is actually division sign and *is multiplication sign
The numerator of this function given may be factored out as follows,
x² - 2x - 15 = (x - 5)(x + 3)
Given that the expression x - 5 appears in both the numerator and the denominator, we can cancel them and the new function becomes,
f(x) = x + 3
which is continuous at 5.
He used 11 quarts out or 3 gallons .
I know because in 1 <span>gallon</span> there are 4 quarts .
You do 4*3 =12.
Than you -1 from 12 and get 11.
So,Your answer is He used 11 quarts out of 3 gallons.
Hope that helped.