Evaluate the logarithm.
log9(1/81)
a. 2
b. -2

What is the surface area of the sphere?

Elm street is straight. willard's house is at point h between the school at point s and the mall at point m. if sh = 3 miles and hm = 4.5 miles, what is the value of sm in miles?

Jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. if she misses the wednesday practice, what is the total number of hours that she trains?