From a pool of 30 candidates, the offices of president, vice president, secretary, and treasurer will be filled. in how many different ways can the offices be filled?

4*52 using expanded form

If the angle of incidence of a ray of light, from air to water is 35º, find the angle of refraction, given that the refractive index of water is 1.33.

What is the domain of (9c+160) / 5

If a^1/n=r then which of the following statements are true check all that apply a. r^n=a b. n^1/r=a c.^n√a=r d. a^r=n

Is this correct 837divided by 36 equal 23 remander 12

Kendra has a bowl containing 10 blue marbles, 15 yellow marbles, 5 green marbles, and 6 red marbles of the same size. She will randomly pull out a marble, keep it outside the bowl, and then pull out another marble.

What is 2384598 increased by six million

For each of these word problems, determine if the answer can be found using the division problem 125 : 12. A group of twelve art students are visiting a local art museum for a field trip. The total cost of admission for the students is $125.

The ratio of girls to boys competing at a gymnastics competition was 2 to 1 there were 75 kids participating in the competition. How many boys were in this competition?

the average lifespan of a tiger is 17 years. this is 3 years less than the average lifespan of a lion. write and solve an equation to find the average lifespan of a lion.