X=4, y = - 7, z=9 solve: - 2x-3y+z

Carla owes $3,760 on her Electronics Boutique credit card with a 22.4% interest rate. She owes $3,124 on her Miscellaneous Goods credit cards which has a 18.7% interest rate.

Which math expression represents the phrase? 4 times the sum of a number and 9 a. 4 · n + 9 b. 4 · (n · 9) c. 4 + (n + 9) d. 4 · (n + 9)

Solve for x: x+-19=-3

Is the square root of 544 rational or irrational

How do you find out the mean?

Choose the most correct statement given that Quadrilateral ABCD has vertices A (2, 1), B (2, 4), C (7, 4), and D (6, 1) ? 1. Quadrilateral ABCD is a parallelogram because opposite sides are parallel. 2.

The function h (t) = - 2 (t-3) ^2+23 represents the height, in feet, t seconds after a volleyball is served. Which of the following statements are correct? Select all that apply.

Convert 15.5 feet to meters.

What value of x make this proportion tire 120/165 = x/11

Suppose there's 0.9811 ml of DEET in 1 ml of insect repellent. How much DEET would be in 20 ml of the repellent? A. 19.622 ml B. 24.5275 ml C. 9.811 ml D. 1.9622 ml