Please help
Algebra 1
Find an equation for the line below...

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Which of the following graphs could represent a cubic function?

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