(PLEASE HELP!!) Jamal is solving the equation 2x2+7x−5=0 with the quadratic formula.

Which values could he use for a, b, and c?

a = -2, b = -7, c = 5

a = 2, b = 7, c = -5

a = 2, b = -7, c = -5

a = 2, b = 7, c = 5

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Solve this problem! extra ! 3025/5.5 = a/90.75