Using the drawing, how would you classify angles 9 and 10?

a. vertical
b. reflex
c. adjacent
d. obtuse

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

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?