It takes four teachers two and a half hours to mark a set of test papers. How long would it take six teachers to mark the same set of papers at the same rate?

the members of the school orchestra agree to buy at least 250 tickets for an outside concert. They buy 20 fewer lawn tickets than balcony seats. What is the least number of balcony seats bought?

Oil flows into a tank according to the rate F of t equals the quotient of t squared plus 1 and the quantity 1 plus t, and at the same time empties out at the rate E of t equals the quotient of the natural log of the quantity t plus 7 and the

The lions won 16 games last year. this year the lions won 20 games. what is the percent increase in number of games the lions won from last year to this year?

A scale factor of a scale drawing is greater than one the scale drawing is larger than the actual object

Two-fifths of the students in Mrs. Navares fifth grade class ride the bus to school. if there are 25 students in her class, how many ride the bus to school?

A waiter in a restaurant places two rectangular dining tables side by side as shown in the figure. What is the perimeter of the top surface formed by joining the two tables? A. 38.5 feet B. 49 feet C. 42 feet D. 35 feet

Two numbers differ by 30. If 15 is added to the smaller, the result exceeds half the larger number by 7 1/2. What are the numbers

Is the graph of 6x2 - 2y = 7 a line? Explain.

Factors of 48 that add to equal 26

Jill starts to make a cake using the ratio 3:4. She measure her cake mix and only has 2 cups. How much water will she need to add in order to keep the ratio the same?