There are 10 less red skittles than orange skittles in the bag. the orange skittles are also twice the number of red skittles. find the number of red and orange skittles in the bag.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

What is the value of x when x + 7 = 21?