Answer :
1) I think you meant 16^2. That's 4^4, so it would be 64*4 which is 256, A
2) 7x-1 = 9
7x=10
x=10/7
C
2) 7x-1 = 9
7x=10
x=10/7
C
[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]
[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]
