Simplify the expressions below a. (y^3)^2y^4 b. (z^-3)^-2z^3

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

X-intercept=-5 y-intercept=2 the equation of the line is

The measure of an angle is 117°. what is the measure of a supplementary angle?