How many combinations of a president, vice-president, secretary, and treasurer can be chosen from a group of 12 students?

a. 11,880

b. 95,040

c. 665,280

d. 3,991,680

22/27+5/18+-7/10 add and simplify

A medium water hose can fill a pool in 30 minutes. A larger water hose can fill the same pool in 20 minutes. If both hoses are turned on at the same time, how long will it take to fill the pool?

Solve the system of equations. -8x - 7y + 2z = 7 x - 4y + 3z = - 9 8x + 2y - 5z = 10

What is the solution of the equation? 4.7x 3.8 = 13.2 a. 3.7 b. 3 c. 2 d. 3.6?

15 : 3 = 5. Explain why it is true that 1.5 : 0.3 and 0.15 : 0.03 have the same quotient.

Describe la situasion de esta expresión - 3+4

What is the answer when k^2 x m, when K=2 and m=5

What is the standard form for the quadratic function? f (x) = (x-3) ^2+5 f (x) = x^2-6x+14 f (x) = x^2+14 f (x) = x^2+6x-4 f (x) = x^2-4

A manufacturing business needs various items to function well. Which is an example of a service?. A. machinery B. raw material C. transportation

What is 4=-6w+8 (w+2) ?