Caleb bought groceries and paid $1.60in sales tax. The sales tax rate is 2.5%. What was the price of Caleb's groceries, before tax?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Solve: 3x+y=6 4x-2y=18 show all work !

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0