Ahmed works for an organization whose employees had an average income this past year of $28,000 with a variance of $900,000. How much did Ahmed earn this past year if his z-score is – 0.8?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%