Suppose e (x) = 3 and e[x (x - 1) ] = 27.5. (a) what is e (x2) ? [hint: first verify that e[x (x - 1) ] = e[x2 - x] = e (x2) - e (x).]

Percy buys tomatoes that cost $0.58 per pound. He pays $2.03 for the tomatoes. (Part A) Percy estimates he bought 4 pounds of tomatoes. Is Percy's estimate reasonable? Explain.

Find the value of x given that the mean is 6: 2, 8, 9, 7, 6, x

Graph the linear equation 5x - 6y = 60

6.8 divided by 2.72

How do you identify the mean, median, and the range?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.