Working alone, Carlos can oil the lanes in a

bowling alley in five hours. Jenny can oil

the same lanes in nine hours. If they worked

together how long would it take them?

Simplify the following expression: 70 (-5.1 - 1.2) - 5° - 35 (-1.4 - 7.8)

A decimal number with two decimal places has the following features: 1) The value of the whole number part is 5 greater than the greatest one-digit number. 2) The sum of the digits in the tenths and hundredths places is 16. What is the number?

The company delivered 1 3/5 tons of bricks to one building site. they delivered 2 1/2 times this much to a second site. what was the weight of the load the company delivered to the second site?

Solve the inequality. graph the solution. 8a-15>73

What is the leading coefficent and constant of the equation 3x^2+5x+2

How many natural numbers are there in 500²and501²

Write an Algebraic Expression for Problems 1 - 6. 1. Five less than eight times a number 2. Thirteen more than a number 3. A number divided by seven 4. John went to Cinemark. The movie cost $12 and each drink cost $3.50.

In the function F (t) = 200 (0.95) ^t, what is the rare of change (in the from of precent and showing growth or decay)

The lines described by y = (a + 12) x + 3 and y = 4ax are parallel. what is the value of a

On the drive to school you pass two traffic lights. List all the combinations of lights you could get. Use R for red, G for green, Y for yellow.