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

What means the same as 2 (3x - 4) ?

Two numbers are less than 100. their GCF is 15. the smallest number is 1.3 of the large number. What are the numbers?

Mr mehra spends 30% of his income in food 10% on charity 25% and is left with 15750 what is his salary? find his savings

How one a rectangle has an area of 12 square feet and a length of 5 feet. what is its width

Miranda and Jean are planning a trip together. They want to drive, but they're not sure whose car to take. Jean's car uses 5/12 gallons of gasoline to travel 12 1/2 miles. Miranda's car can go 20 5/7 miles on 5/7 gallons of gasoline.

A grocer needs to mix raisins at $2.00 a pound with granola at $3.25 a pound to obtain 10 pounds of a mixture that costs $2.50 a pound. How many pounds of raisins and how many pounds of granola must be used?

Ms. Ellis expected 50 families to attend parent teacher conference but 60 families attended. What is the percent error?

The width w of a credit card is 3 centimeters shorter than the length l. the area is 46.75 square centimeters. find the perimeter.

Alysa volunteers for 3.7 hours each day. If she volunteered for a total of 71.8 hours, for how many days did she volunteer? Round your answer to the nearest tenth of a day, if necessary.

What is the fastest thing in the world