Dintr-o clasă cu 20 de elevi, particpă la concursul de șah 16 elevi, iar la concursul de caricaturi 12 elevi. Aflați câți elevi partcipă la ambele concursuri.

You are tiling a kitchen floor that is 10 ft wide by 4 yd long. How many square yards of tile do you need?

Three times the smaller of three consecutive odd integers is 3 more than twice the largest. find the largest integer.

If x - y = 9, then x2 - 2xy + y2 =

Which teacher exhibited the most consistent performance over this 5 year span?

A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i. e., of the population) is 0.22 ounces. In this problem the 0.22 is Select one: a. a parameter. b.

A certain type of bacteria, given a favorable growth medium, doubles in population every day. If you begin with 10 bacteria, how many days will it take for the population to reach 20,000

If you wanted to find the depth of a submarine during a dive, would it be more reasonable to use an equation with the rate in feet per minute or feet per hour? Explain your reasoning.

What value of satisfies the equation 2n-3 (4n+5) = -6 (n-3) - 1

A supplier has delivered 9 pallets of material to the hardware store. The delivery needs to be inventoried in 1.5 hours. How many pallets must be inventoried per hour?

Solve x for 3 х - 1 = - 13