The width of a rectangle is 8 inches less than the length. The perimeter is 40 inches. Find the length and the width.

Let f (x) = 201+9e3x. What is the y-intercept of the graph of f (x) ?

Brandon wants to buy a shirt that originally costs $P. He recieved a 15% discount on the original cost, so he paid a discounted price of $R. This can be represented by the following equation.

If the sum of the two first term of a gp is 3 and the sum of the second and the third term is - 6. find the sum of the first term and the common ratio

What is 1,230 * 103 in scientific notation?

A claustrophobic person gets on a train. The train enters a tunnel just as it is leaving the station. Where is the best place for him to sit?

Interpret the average rate of change of - 14/3 that you found previously. What does this mean in terms of the waterslide, from x = 0 to x = 15?

John wants to simplify the expression (5+3) to the power of 2. As a first step, he writes 5 to the power of 2+3to the power of 2. Will he get the correct value for the expression? If not, what should he do to simplify the expression

A car costs $22,500 and decreases by 12% each year. How much will the car be worth in 5 years?

5 eggs weigh 2/3 of a pound. How much does each egg weigh?

1/2x+2y=-8 solve for y