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Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?