F (x) = - 2x + 9, find x if f (x) = 23

The construction workers are filling a hole with cement. The hole is 13.75 feet deep below ground level. They fill the hole with 27.50 feet of cement. What is the height of cement above ground level?

2) (1, - 5), (7,-3) (1,-5), (7-3)

36m^6+12m^4+m^2 how so u solve this

Given the system of linear equations. -x + y = 17 6x + y = 14 Part A: Use substitution to find the solution to the systems of equations. Include all of your work in your final answer. Part B: Algebraically verify your answer to Part A.

Choose the best answer. Which of the following is usually NOT red? la piña la sandía el tomate la fresa

Given (-2, 4) (1, - 2). Find the slope of the line

Which of the following is (are) the solution (s) to 15x + 21 = 8?

Maggie had 20 ribbons. 2/5 of the ribbons are polka-dot Ted ribbons. how many are not polka-dotted?

Find the rate of change from 1 minute to 2 minutes

Kim is taking a math class, and the teacher gives a multiple choice test consisting of 8 questions. if each question has 5 answer choices, and kim answers every question, in how many different ways can she complete the test?