What’s the equation to solving 8 batteries the cost of $49 cost per battery

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Which of the following values cannot be probabilities? 0.08, 5 divided by 3, startroot 2 endroot, negative 0.59, 1, 0, 1.44, 3 divided by 5 select all the values that cannot be probabilities. a. five thirds b. 1.44 c. 1 d. startroot 2 endroot e. three fifths f. 0.08 g. 0 h. negative 0.59

Solve -.016x= -16. need solving this