Lm having trouble finding the measure of a angle.

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

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

How many solutions does the nonlinear system of equations graphed below have?