Ray recorded the amount he paid for his phone bill each month for the year in this table. $28$27
$26$25
$32$26
$30$25
$30$28
$28$30
The range of the data is , and the interquartile range is .

Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?