Accepted Answer
[tex]16^2[/tex][tex]16*16[/tex][tex]256[/tex][tex]A[/tex][tex]7x-1=9[/tex][tex]7x-1+1 = 9+1[/tex][tex]7x=10[/tex][tex] \frac{7x}{7} = \frac{10}{7} [/tex][tex]x= \frac{7}{10} [/tex][tex]C[/tex]
Suggested Answer
1) I think you meant 16^2. That's 4^4, so it would be 64*4 which is 256, A2) 7x-1 = 97x=10x=10/7C