Consider the data below which represents how much a cell phone plan
charges per month for a given number of minutes for 3 different plans.
Plan A:
Plan B:
Plan C:
Minutes Cost
f(x) = -x + 10

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?