Solve for a.
2 (20 – 4a) = 6 - a
A: 0
B: -1
C: no solution
D: all real numbers

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

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

Which line is parallel to the line that passes through the points (2, –5) and (–4, 1) a. y=-x+5 b. y=-2/3x+3 c. y=2/3x-2 d. y=x+5