If y varies directly as z, and y = 19 when z = 152, find the equation of variation A. y= 1/8z
B y = 8z
C y = -1/-2 z
D y = -2x

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?

Can someone explain to me how to do

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.