the table shown below gives the estimated number of text messages sent in the u. s. by year. (table is included)
approximately how many times as many text messages were sent in the u. s. in
2011 as in 2005?

okay wait before i answer, is this for your points on a graph?

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

y > 1/3x

y < = -x + 4

hope this : )