For a house call, a veterinarian charges $70, plus $40 an hour.
a. write an equation that represents the total fee yy (in dollars) the veterinarian charges for a visit lasting xx hours.

Find the value of the cosine for angle a

What is the value of r of the geometric series?

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1