Cookies are on sale! Today each cookie costs \( \$ 0.75 \) less than the normal price. Right now if you buy 7 of them it will only cost you \( \$ 2.80 \) ! Write an equation to determine the normal price of each cookie \( (c) \).

5. Rajah di bawah menunjukkan suatu graf fungsi kuadratik yang menyilang paksi-x pada titik \( P \) dan titik \( Q \). Tentukan koordinat bagi titik \( P \) dan titik \( Q \).

There are 56 sheep in a paddock. Each sheep is either white or black. There are 6 times as many white sheep as there are black sheep. How many black sheep are in the paddock?

\( \left. \begin{array} { l } { 14 . f ( x ) = - 2 x ^ { 2 } + 4 x + 3 } \\ { x } \\ \hline - 2 \\ { - 1 } \\ { - 1 } \\ { 0 } \\ { 1 } \\ { 2 } \end{array} \right. | \)

1: \( 6 x+6 z=6 \)

USING EQUATIONS to solve WORD PROBLE Directions: Set up and solve an equation for each problem below. 10. The sum of four consecutive integers is 222 . Find the integers.