5x-2(x+1)=10 what is X?

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Is there an x intercept in the equation 60*1.15^x