3x + y = 4 8x + 2y = 10 After you solve the problem record a video of yourself describing the how you got your answer. In order to receive full credit for this assignment you must submit a video of yourself describing the process. The video should be 2 -3 minutes long. Make sure at the end of the video you show your completed work.

X+y=-4 x-y=2 use elimination with adding and subtraction

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.