Evelyn gave a $3 tip to the person delivering her $15 pizza. what percent of the cost of the pizza was the tip that she paid? a. 3% b. 5% c. 15% d. 20%

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.!