Bob purchased 2 hot dogs and 1 hamburger for S10. Later that day, Bob had to purchase more food and Bot 1 hot dog and 3 hamburgers for S15. What were the prices of the hamburger and hot dogs?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

What is always true about a positive integer raised to a negative odd power?

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x