Sandra raised 15 dollars for pta and nita raised 45 dollars how many times as much money did nita raise as compared to sandra

Can someone me out here and the tell me the greatest common factor

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.!

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.