Question

1.
find the value of c in the equation a^b(3a^b)c= 243a^6b

a. 2

b. 4

c. 5

d. 8


2.
Select the expression that is equivalent to 6a^-4(3b^8) over 3a^3b^2

a. 3b^5/a^4

b. b^8/3^a

c. 6b^6/a^7

d. b^3/6a^4

Answer 1

The first one simplifies to 81a^4b
Sorry, I cannot solve the second one without placement of parentheses on the exponents

Answer 2

none of the answers make any sense to me I wrote it on paper I used a calculator and got answers completely different from the answer options given sorry I cannot help, but this is a part of my math that is not the best.