Assume that 28 take mathematics, 28 take psychology, and 13 take mathematics and psychology. How many students take exactly one of these two courses

An experimental serum was injected into 500 guinea pigs. Initially, 50 of the guinea pigs had circular cells, 100 had elliptical cells, and 350 had irregular cells.

There were twice the number of people

Given a data set, how do you know whether to calculate sigma or s? Choose the correct answer below. A. If the given data set contains a large number of entries, then s is calculated.

Factor pairs for the number 26

Maya reads 1/8 of a newspaper in 1/20

With a tail wind, a plane traveled 840 miles in 3hrs. With the same wind as a head wind, the return trip took 30 minutes longer. Find the plane's airspeed (in still air) and the wind speed ... So lost smh

A chef is weighing tomatoes to decide which to use in a recipe. Which unit is he most likely to use? A. milligrams B. Grams C. Kilograms

a business Spa a lot of 2500 lamps for $50,000 and wants to sell them at a 15% profit how much should each lamp cost

Find the area of the circle with the given radius or diameter. Use = 3.14. d = 12 A = 56.52 113.04 452.16

What expression is equivalent to two thirds?