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**Jnoobs** hey guys i just recieve a take home test from my math teacher the other day, and i've got all of the test done except for these 2 story problems, can you guys please help?

1. Lisle Washington has two job offers. The starting salary for both jobs is $10,000 for 6 months', or $20,000 per year. In the first job, Lisle would get a raise of $500 (in his salary for 6 months) at the end of every 6 months. In the seconds job, he would get a raise of $1,500 (in his yearly salary) at the end of every eayr. Calculate his total earnings after 5 years on each job. Which job pays more for the 5 years?

and

2. A roll of paper used in the production of books contains the equivalent of 3750 concentric cylinders of paper. The smallest cylinder (wound on a cor) has a diamete of 3 in. and each successive cylinder is 0.004 in. larger in diamter than the preceding one. What is the total length of paper on such a roll?

help would be greatly appreciated, thank you :]