Your dad put $1,000 into a new bank account to save money for a family trip. he earned $18.75 in simple interest after 15 months. what is the annual interest rate? use the formula: i = prt.

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.!