Use the simple interest formula to find the ending balance. $1500 at 7% for 1.5 years. 13 points

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?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Evaluate the expression. (9 + 5)(3 + 2)0