How many gallons of 80% antifreeze solution must be mixed with 70 gallons of 20% antifreeze to get a mixture that is 70% antifreeze?

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?

The trigonometric ratios sine and secant are reciprocals of each other

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet