exam Maths Puzzle Numerical Ability

I have no idea how to find the domain of problems 3-6. Also, i can't figure out how to factor 18-20.

Read Solution (Total 0)

exam Other Question

Give the slope of the line that contains (6,-1) and (6,6). Having a real hard time with this...please help!

Solve system of equation word problem but either addition method or substitution method.

6x+2y=8
y=-3x