The number n of copies a machine can make varies directly as the number h of hours it operates. it can make 2000 copies in 15 hours how many copies can it make in 21 hours

4 horses share apples evenly. what % of apples will each horse get?

A total of 396 tickets were sold for the school play. They wee either adult tickets or student tickets. The number of student tickets sold was three times of adult tickets sold. How many adult tickets were sold?

A country is considering two income tax rates. Geoffrey is comparing what his tax bill would be under each plan. Under plan A, he pays 5% on the first $10,000. The next $85,000 is taxed at a rate of 10%.

A holiday meal costs $12.50 a person plus a delivery fee of $30 at we cater. the same meal costs $15.00 a person with no fee at good eats. when does we cater become the better deal?

What is a common denominator for 12 and 18

Is - 11 greater than - 5

The property that justifies the sentence 2x2 + (5x + 1) = (2x2 + 5x) + 1 is:

Devon babysits x hours a week after school for 5$ an hour, and also has a job as a cashier y hours a week for $10 an hour. He wants to earn atleast 70$. He can't work any more than 10 hours a week because of school.

Emergancy final exam! The base length of a triangle is 8 feet and the height is 4 feet. What is the area of the triangle?

4/5+2/3 i need to know the answer so i would know whats the answer.