exam Maths Puzzle Numerical Ability

Are the following lines parallel, perpendicular, or neither?
L1 with equation x - 7y = 21
L2 with equation 7x + y = 7
A) Parallel
B) Perpendicular
C) Neither

Read Solution (Total 0)

exam Other Question

Adult tickets for a play cost $18 and child tickets cost $14. If there were 26 people at a performance and the theater collected $396 from ticket sales, how many children attended the play? Multiply

8pq^2(2pq-3p+5q)

Thank you, These problems have me so confused.