Last month, margo bought a tree that grows 2.5 cm each day. it was 5 cm tall when she bought it and now it is 65 cm tall. write an equation to determine the number of days (d) margo has owned the plant. find the number of days margo has owned the plant.

Place the following steps in order to complete the square and solve the quadratic equation,

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

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