3^x x 9^4=3^n
Find n in terms of x

Combined megan and kelly worked 60 hours.kelly worked twice as many hours as megan.how many hours did they each worked?

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

Can someone answer this question? : )