The shape shown on the coordinate plane is rotated about the y-axis. What is the shape of the solid created by the rotation?

Cone, radius = 4, height = 7

Step-by-step explanation:

The point (4, 0) will spin around the y-axis, forming the base of the cone. The point (0, 7) will not move--it's point of the cone.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: