How many ways can 7 books be arranged on a shelf 5 at a time?

If an airplane can fly 700 miles with the wind in the same time it takes to fly 580 miles against the wind. If the plane flies 160mph, find the speed of the wind.

If a coin is fliped four times what is the probability of getting heads all four times

Which quadrilaterals are all of its angles congruent

John goel is to have more then - 7 dollors in hisaccount by the end of this mounth. the varible d is the nuber of dollor in johns bank account at the end of the mounth.

What are the constants in this expression? - 10.6+9/10+2/5m-2.4n+3m

Curtis charges a flat fee of $2.50 for each delivery plus $0.20 per mile for each mile he drives. For one delivery, Curtis drives 6 miles. How much does Curtis charge to deliver the food?

Y=5x+20 Y=-7x-16 Solve each system by substitution

what kind of growth model (pattern) is showen in the table x 1, 2, 3, 4, 5 y 5, 25, 125,635,3,125

The sum of three numbers is 16. The sum of the first number and the second number is 2 more than the third number. The second number minus the sum of the first number and third number is twice the third number.

Devon Price is a clerk typist. His annual salary is 18,720. What is his biweekly salary?