Answer:
90
Step-by-step explanation:
Change 5 hours to minutes. (5x60, and 300 minutes)
Divide 300 by 40. (7.5)
Then, multiply 7.5 by 12 (90)
5b^2A^2/6 that would be the answer
I have seen that question before i will try and find it and get back to you soon
15/7 x 5 and 2/5 x 7
75/35 - 14/35 = 61/35
The expression would be

after the negative exponents have been removed.
A negative exponent basically tells us to "flip" the side of the fraction it's on. This means that y⁻⁶ on the numerator would go to the denominator, and that x⁻⁴ on the denominator would go to the numerator. This gives us: