7a^3(6a^2 + a)^2 - 4a^6
All we have to do here is basically add and subtract exponents!
(6a^2 + a)^2 = 36a^4 + a^2
7a^3(36a^4 + a^2) - 4a^6
252a^7 + 7a^5 - 4a^6
Answer is C.
I'm pretty sure it would be 4 5/6 - 3 2/3 = 1 1/6.
Answer:
8,13,21
Step-by-step explanation:
Basically,add the previous number to next number
24 times 7 = 168 times 145 = 22, 680 hours
