Question

I've done 1 and 3 since theres a cropping limit i couldnt properly crop but tell ans 2 plz​

Answer 1

Answer:

n=3

Step-by-step explanation:

5^2n × 5^3 = 5^9

5^2n+3 = 5^9

2n+3 = 9

2n = 9-3 = 6

n = 6/2 = 3

n = 3