Before sales tax, the classical music cd cost $15.jan gave the clerk a $20 bill and recieved $4.17 change. what is the rate of sales tax? a.9.5% b.4% c.6.25% d.5.5%

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

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?

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!