Question

can someone answer 5,6,7? can you also tell me how to solve them so i can do better in the future?

Answer 1

Like this , this is the rules of index

Answer 2

6. 7^2=(7•7=49)7^3=(7•7•7=343)
49•343=16,807
5.8^1=(8•1=8) 8^4=(8•8•8•8=4096)
4096•8=32,768
7. X^5 •x^4=9 (since there is no number where “x” is you just add)