What is the average miles per gallon for all new cars? using consumer reports, a random sample of 35 new cars gave an average of 21.1 mpg.
what is the variable?

Solve the equation by completing the square. x^2+2x=17

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24

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?