Which statements are true about the ordered pair (5, −6) and the system of equations? {x+y=−13x−y=21 Select ALL correct answers. A. The ordered pair (5, −6) is a solution to the first equation because it makes the first equation true. B. The ordered pair (5, −6) is a solution to the second equation because it makes the second equation true. C. The ordered pair (5, −6) is a solution to the system because it makes both equations true. D. The ordered pair (5, −6) is not a solution to the system because it makes at least one of the equations false.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.