Carol drives her daughter to school at an average rate of 30 miles per hour, but only goes an average rate of 20 miles per hour on the way home because of traffic. what is her average rate for the entire trip?
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the answer is not 25 mph, i know for a fact that you can't just add 30 and 20 and divide by 2.

X2 + y 2 = 36 x + y = 6 solve the system of equations.

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.