A board is 64 inches long. How long is it in feet and inches?

Ineed with number 17 i don’t get it at alll

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

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section