7. Three sisters spent different amounts of money on their recent shopping spree. Ella spent $50 less than Ariel. Belle spent twice as much as Ella. How much did each sister
spend if they spent a total of $370?
A.) Define a variable.
B.) Write an algebraic expression for each of the given quantities.
Ariel:
Ella:
I Belle:
C.) Write and solve an equation.

On a piece of paper, graph . then determine which answer choice matches the graph you drew

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?