On the architect’s plans for a new high school, a wall represented by MN has endpoints M (-3, -1) and N (2, 1). A wall represented by PQ has endpoints P(4, -4) and Q(-2, 11). Are the walls perpendicular? Explain.

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

I’m stuck on this equation, anyone got the answer?