7 birds are on a fence, half of them fly away, then 2 come back. How many birds are left on the fence?

BD bisects angle ABC, measure of angle ABC=5x-4, and measure of angle CBD=2x+10. Angle ABC is a (n) _ angle

For what values of x is the inequality x-5≤3 true? a. x≤-2, b. x≤ 8, c. x ≥-2 or d. x≥ 8

What is the greatest common factor of 42,126, and 210?

Tricia has a birthday party. During the party, she opened 36 gifts, which was 60% of all her gifts. After the party, she opened the rest of the gifts and found that 25% of them were the same present, so she returned all but one of the duplicate

The National Research Council recommends keeping 3:1 cooper to zinc ration in a horse's diet. if the horse is getting 420mg of zinc per day, how many milligrams of copper does the council recommend the horse to have?

If P dollars is deposited in a savings account that pays interest at a rate of r % per year compounded continuously, find the balance after t years. (Round your answer to the nearest cent.) P = 100, r = 2 1/2, t = 12

Linda bought 56 books. Linda bought 8 times as many books as Pablo. let b be the number of books pablo bought

Which equation should be used to solve 81 + * = 108

Nadia started at 19.26 feet below sea level and then changed her altitude by climbing a total of 5,437.8 feet up from her initial position. What was Nadia's altitude at the end of her climb

A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 6 cm more than the shorter leg and the hypotenuse 12 cm more than the shorter leg. How long should the sides of the triangle be?