If 20 percent of 40 percent of a number is 10 greater than half the number, what is the number? a. -500/21 b. -500/3 c. 200 d. 200/21 e. 210

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Solve the system of equations. y=3x-1 and y=-2x+9. show work

Asap easy 6th grade 30 pts describe how to rewrite a power with a positive exponent so that the exponent is in the denominator.