Pls help me (urgent) 1.if half a gallon costs $1.24 what is the cost per pint?
2.what is the total cost of a $12.50 item plus 6 % sales tax?

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?

In angle pqr find the measure of

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?