An oil tanker can be emptied by the main pump in 4 hours. An auxiliary pump can empty the tanker in 7 hours. If the main pump is started at 5 PM , when should the auxiliary pump be started so that the tanker is emptied by 8 PM ?

What is greater - 1.44 or - 1 1/4

1. Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 11 feet by 11 feet by 3 inches for a patio if the concrete costs $63.00 per cubic yard? $211.75 $70.58 $317.63 $1,905.75 2. The volume of a cylinder is 980 in.

21 pts. What are the intersections of the graphs of these equations with the x-axis? y=0.4x-12

On a piece of paper, graph y+2>-3x-3.

What is the least common factor of 5 and 150?

Negitive 2x minus 3 equals 5 what is x equal too

What is - 54 minus - 25

Two triangles have side lengths 3, 4, 5 and 6, 8, 10, respectively. the triangles are similar to each other. a. True b. False

A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first. What is the length of the first piece of the board?

If f (x) = 3x and g (x) = 5x-3 find gf (x)