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1. for all real numbers x and y where x=2y-8,y= ?
a. 72x - 4
b. 2x - 16
c. 4x + 32
d. 2x + 16
e. 4x - 4
2. if x= 7+ a and y = 3 - 2a, which expresses x in

Milk and ice cream are mixed together for a recipe. the total volume of the mixture is 1 cup. if the milk contains 2% fat, the cream contains 18% fat ,and the mixture contains 6% fat ,how much cream is in the mixture