1. Suppose y is jointly proportional to x and z. What is y when x = 2 and z= 3, if y= 20 when x = 4 and z= 3?

2. Y varies directly as x and inversely as the square of z, and when x=32, y=6 and z=4. Find x when y=10 and z=3.

Carl wants to buy a television that cost $500 including taxes. to pay for television he will use a payment plan that requires him to make a down payment of $125 and then pay $70.50 each month for six months what is the percent increase from the original cast of the television to the cost of the television using a payment plan.

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog