Equivalent expressions for 7x+2x+6y

The shorter leg of a right triangle is 21 feet less than the other leg. Find the length of the two legs if the hypotenuse is 39 feet.

In a recent survey of 440 people, 1/4 said they watched television every evening 2/5 said they watched five or six nights each week, and the remainder said they watched four nights a week or less

A (-9,8), b (-5,5), c (1,13), d (-3,16) how many units?

The table gives a car dealers weekly sales for the first 26 weeks of a year. The mean number of cars sold per week is

For each situation below, state the independent variable and the dependent variable. a. A study is done to determine if elderly drivers are involved in more motor vehicle fatalities than all other drivers.

The product of two rational numbers:

Chris bought 10.4 gallons of gasoline. There are approximately 3.8 liters in 1 gallon. Which measurement is closest to the number of liters of gasoline Chris bought? A) 11.44 L B) 2.74 L C) 39.52 L D) 14.20 L

Brandon needs $480 to buy a TV and stereo system for his room. He received $60 in cash for birthday presents. He plans to save $30 per week from his part-time job. To find how many weeks w it will take to have $480, solve 60 + 30w = 480.

What is 85% of what is 17 for the subject mathmatics?

Does choosing a blue marble represent the complement event of choosing a red marble? Explain.