Les Moore now has $100 and adds to it at $5 per week. Lotta Spences now has $300, but she is spending $10 of it per week. Let x be the number of weeks that have passed. a. Write the definition of x. Then write expressions for the numbers of dollars each have after x weeks.
b. Write and equation stating that each has the same number of dollars. Solve it to find out when they have this number of dollars.
c. How many dollars would this be?