Use cubic regression to find a function that fits the following points.
(-3, -28) (0, -4) (4, 168) (-5, -174)

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

How do you find principle and simple interest

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?