In 1998 the dropout rate was 29.5% and in 2008 it had dropped to 18.3%. let d(the outputs) represent the dropout rate and t(the inputs) represent the years since 1990. Find a linear model for the dropout rate given the year.

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30