Which of these equations represent functions? check all that apply. a. 3x2 - y2 = 1 b. y = 6x c. y = x2 - 2 d. y2 = x2

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?