Can someone help me on this problem

Adaylily farm sells a portion of their daylilies and allows a portion to grow and divide. the recursive formula an=1.5(an-1)-100 represents the number of daylilies, a, after n years. after the fifth year, the farmers estimate they have 2225 daylilies. how many daylilies were on the farm after the first year?

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me