find the height of a cylinder with a volume of 100 yd and a radius of 2 yd. round to the nearest yard

What is the product? (x2+3y+7) [yy+1)

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes