Question

Sharita does special typing jobs for scientists. She charges $16 for the first three pages and three dollars for each additional page of scientific typing.Sonia, a biologist paid 106 dollars to have a research paper typed. How many pages long was Sonia's paper.

Answer 1

16 + 3p = 106
3p = 106 - 16
3p = 90
p = 90/3
p = 30

so we have the first 3 pgs + 30 pgs...for a total of 33 pgs <==