What is the simpler form of the expression?
(5d+2)(3d^2+8d-3)

a. 15d^3 + 46d^2 + 1d - 6
b. 15d^3 + 34d^2 - 1d - 6
c. 15d^3 - 34d^2 + 1d - 5
d. 15d^3 + 34d^2 - 1d -5

Hello, i need compare km^2 and km. what's difference in this?

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

The table shown below gives the approximate enrollment at the university of michigan every fifty years. how many more students were enrolled at the university of michigan in 1950 than in 1900?