Last week Betsy made 80 on her quiz. This week she made 76. What is the percent of decrease in her score?
A5%
B 12.5%
C10%
D 4%
А

Asphere has a diameter of 10 in. what is the volume of the sphere?

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

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.!