Which set of side lengths will NOT form a triangle? 6 in., 10 in., 10 in.
8.5 in., 12.5 in., 16.5 in.
10 in., 13 in., 18 in.
4.5 in., 6.5 in., 11 in.

The monthly texting plan of all star cell is $11 per month and $0.25 per text. the monthly texting plan of top line cell is $14 per month and $0.15 per text. a student wants to set up a system of equations to find the number of texts for which the total monthly cost of the two companies is the same. he uses the variables x and y. he lets y represent the total monthly cost. what will x represent? x = number of texts x = cost of the total number of texts x = total monthly cost x = cost of each text