What is 2987654 × the square root of 8

Write 5 numbers that round to 740 when rounded to the nearest 10

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.

3382-299=3383- ? fill in the blank?