John left a 20% tip on a $40.00 dinner bill how much was the tip

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

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 − 2x

Which graph represents the equation y =4x