5. What amount should a nurse receive as a bonus so that she would net $500 after deducting 30% for taxes?

6. Joan has $4,000 invested, partly at 5% and the remainder 3% interest. The total income he received in 2018. How much does he have invested in each investment?

7. For Halloween, the M&M company wants a mixture of 40 pounds of M&Ms worth 60 cents per pound. They only have blue M&Ms worth 45 cents/lb and yellow M&Ms worth 85 cents/lb. How many pounds of each should be taken?

8. What weight of water must be evaporated from a 40 pound salt solution to produce a 50% solution?