12. The trapezoid below has legs with lengths y feet and one base that is four feet longer than the other base,
x+4
The perimeter of this trapezoid is given by P= 2x +2y+4. Solve this
equation for the leg length, y.
If the perimeter of the figure is 26 feet and the shorter base, x, is 8 feet, then find the length of the leg. v.

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.