Select the correct answer. Which equation represents the vertical line passing through (7,-3)?
A. x=-3
By=-3
C. x=7
D. y = 7

4. find the geometric mean of 4 and 12. 24 8

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?