Easy way for a 2nd graders to learn marh

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

Can anyone me with 32,33,36,37,and 40.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.