A group of 72 went on a field trip. The students traveled in vans, with an equal number of girls and boys in each van. If 42 boys went on the trip, how many vans were there?

Simplify: (2q/7^4) ^4

What decimal is greater 126.698 or 126.689?

What is 16 less then half of a number into an algebraic expression.

How to work 11a-5c+3a

0 = 4x2+12x+9 Simplify the expression to solve the equation. x =

What is 240,000,591 divides by 176

Solve 3x2 18x 15 = 0 by completing the square. a. 3 (x 3) 2 = 6; x = - 3 square root 2, x = - 3 - square root 2 b. 3 (x 9) 2 = 12; x = - 11, x = - 7 c. 3 (x 3) 2 = 12; x = - 5, x = - 1 d.

A pillow that usually cost $18 is marked down 25% what is the markdown and what's the new price

Square root of one hundred and twenty three

Suppose commute times in a large city are normally distributed and that 62.50% of commuters in this city take more than 21 minutes to commute one-way. if the standard deviation of such commutes is 6.2 minutes, what is the mean commute?