three pages cost $13 in remain Pages cost $3 each, for a total of $106. in = the number of pages typed and in -3 = the number typed at $3. here is the equation:
Sharita does special typing jobs for scientists. she charges $13 for the first 3 pages and $3 for each additional page of scientific typing. sonia, a biologist, paid $103 to have a research paper typed. Here's our equation: