Distribute: 4(3x + 7)

a)
7x+7

b)
12x+7

c)
7x+28

d)
12x+28

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x