Sharita does special typing jobs for scientists. she charges $13 for the first 3 pages and $3 for each additional page of typing. sonia a, biologist, paid 106$ to have a paper typed. how many pages was sonias paper
When you subtract 13 by 106 you will receive 93. Then you divide 93 by 3 and get 31. Add 3 pages to 31 and get 34. (If you're wondering where i have gotten the 3 it is from the first 3 pages Sonia paid for)
