Sales = 13.89(Advertising Investment) + 28.65 with a correlation coefficient of r = 0.89 What would you expect my Sales be if I I invest $1000 in advertising? Am I guaranteed that amount of money in Sales? Why or why not? If not, do you expect it to be close? Would you recommend I invest this money and use this agency based on this predictive model? Thank you for your help!

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?