A school has 90 children. During the day each child attends 4 classes. Each class has 15 children and 1 teacher. During the day each teacher teaches 3 classes. What is the smallest number of teachers the school can have.

A 20-person hockey team returns to the bus after a hockey match. during the one-hour ride back, each person produces 740 BTU (British thermal units.) The interior of the bus measures 38 ft by 8.25 ft by 7.5 ft.

How can the decimal 0.57 repeating be written as a fraction

On a winters day, the average temperature during the daytime is 40°F. At night the temperature falls to 24°F. What is the percentage decrease?

D + 3 < 12 a.) d < - 15 b.) d < - 9 c.) d < 15 d.) d < 9

Sat question+if a right circular cylinder has a radius of 2 cm and a volume of 100π cubic cm, what is the height of the g in centimeters?

What is the quotient (65y3 15y2 - 25y) : 5y? a. 13y2 3y - 5 b. 13y3 3y2 - 5y c. 13y2 - 3y 5 d. 13y2 - 3y - 5

Which angles are corresponding angles? check all that apply

An investment of d dollars at k percent simple annual interest yields $600 interest over a 2-year period. In terms of d, what dollar amount invested at the same rate will yield $2,400 interest over a 3-year period? A. (2d) / 3 B. (3d) / 4 C.

A bag contains 2 steel balls and 5 brass balls. The total weight is 13 pounds. If 2 steel balls are added and 2 brass balls are removed, the weight decreases to 12 pounds. How much does each kind of ball weigh?

A juice shop needed 360 oranges to make 40 L of fresh-squeezed juice. How many oranges would be needed to make 60 L of fresh-squeezed juice?