Express a^-6 with a positive exponent

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

Predict which statements are true about the intervals of the continuous function. check all that apply