What is the distance from the origin of (2,-5) graphed on the complex plane below?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?