42 less than the product of 28 and an unknown number is 154.

What is the value of the unknown number?

the area of a certain rectangle is 288 square yards the perimeter is 68 yards if you double the length and width what will be the area and perimeter of the new rectangle

Y=x-2 y=x^2-2 Solve each system of equations.

The area of a rectangle is 70 square units. The width of the rectangle is (x+4) units and the length is 7 units. Solve for x

Evaluate 7P6 - 2 (6C2)

Your aunt just got a new car. The car gets about 40 miles per gallon. If there are 12 gallons of gas in the tank, about how many miles can she drive?

What's the vertex for y=2x^2-12x+19

What is the decimal of 1/2 percent

The equation above can be used to calculate the volume V, of a pyramid with a height h and base with length l and width w. If the volume of a pyramid is 81inches^3, and l=w=3h, what is the length of the base of the pyramid in inches?

What is the relationship between the decimals 0.09 and 0.9

A group of winning ticket holders share equally 90,000,000 lottery. Before the money is divided, three more winning ticket holders are declared. As a result, each persons share is reduced to 5,000,000.