Marcy figures out that she walks approximately 39,680 feet every week for exercise. One week, she walks 2,640 feet less than usual. Which is the best estimate of the number of feet Marcy walks that week?

Jonathan worked at McDonald's 20 hours per week and earned 192 $ use the equation 20h = 195 to find Johnathan hourly wage ...

Are the fractions 5/6, 5/7, 5/8, and 5/9 and arranged in order from greatest to least? Explain.

A quadratic equation is shown below: 3x^2 - 15x + 20 = 0 Part A: Describe the solution (s) to the equation by just determining the radicand. Show your work. Part B: Solve 3x^2 + 5x - 8 = 0 by using an appropriate method.

If x+y=10 and x-y=4 then x2=?

U={a, b, c, d, e, f, g, h} A={c, f, h} B={a, f, h} C={a, b, d, e, g} Find set (AnB) u (AnC)

Suppose that textbook weights are normally distributed. You measure 28 textbooks' weights, and find they have a mean weight of 76 ounces. Assume the population standard deviation is 12.3 ounces.

ABC Bookstore rents a storage space that is 75 ft x 50 ft and 15 ft high. It is charged $2.50 per square foot. How much does ABC Bookstore spend on storage space? O A. $140,625 O B. $9375 O C. $2500 O D. $3750

31/9 as a mixed number

Find 4x when 3x equals 3

Solve 64x3 - 1 = 0.