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The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?