angad was thinking of a number. angad halves the number and gets an answer of 78.5. form an equation with x from the information​

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

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8