A teacher has a set of 12 problems to use on a math exam. The teacher makes different versions of the exam by putting 10 questions on each exam. How many different exams can the teacher make?

There are six clearly distinguishable frogs sitting in a row. Two are green, three are red, and one is blue. Green frogs refuse to sit next to the red frogs, for they are highly poisonous. In how many ways can the frogs be arranged?

Find the solution to the system of equations: 3x + 2y = 16 y=-7x+19

Which has the greater volume: a cylinder with a 6-inch radius and a height of 8 inches OR a cone with a radius of 6 inches and a height of 8 inches?

Jim and Bill each invest $15,000 into savings accounts that earn 3.5% interest. Jim's account earns simple interest and Bill's account earns compound interest. After 25 years, who will earn more interest and how much more will he earn?

7.1 + 16.04 -.2 = ?

What is the slope of the line passing through (1, 2) and (3, 8) ? slope = 1/7 slope = 1/3 slope = 3 slope = 7

Members of a car sharing program pay a fee of $50 per month plus$ 7.65 for every hours they use a car. a member bill was$ 149.45 last month. how many hours did the customers use a car last month?

A rectangular shaped desk has a length of 25 inches and a width of 18 inches. A desk with a similar shape has a length of 60 inches. What is the width of this desk?

Describe the difference between 33 1/3 and 33%

How many reading questions do i need to get correct to go up from a 620 to a 700?