Question

Please help on question c

Answer 1

Explanation:

`{5}^(3) * {5}^(x) = {5}^(3 + x) = {5}^(7) \\ x = 4 \\ {( {q}^(2) )}^(y) = {q}^(6) = {q}^(2 * y) = {q}^(6) \\ y = 3 \\ \frac{ {1000}^(m) }{ {100}^(n) } = {10}^(z) \\ z = m - n`

Answer 2

z=3m-2n

Explanation:

`(1000^(m) )/(100^(n) ) = (10^(3m) )/(10^(2n) ) = 10^(3m-2n)`