multiple choice

1. If 5^x=k , then 25^x=

A. 5k B. 2k C. k^5 D. k^2

2. 4512 =

A. 2^9 B. 2 4/9 C. 2 ^36 D. 2 9/4

3. (2^3n x 4^n / 8) ^2

A. 2^n+5 B. 2^ 5 n1 C. 4^ 5 n3 D. 8 ^8 n1

4. Which of the following is the least?

A. 2019^2020 B. 2018^2021 C. 2021^2020 D. 2020^2021

5. it is given that the function y=log2 x has undergone the following transformations:

1. A horizontal translation of 2 units to the left

2. A vertical translation of 3 units up

3. A horizontal compression by a factor of 1/ 3

what is the function