Robert stands atop a 1,380-foot hill. he climbs down, reaching the bottom of the hill in 30 minutes. what is robert’s average rate of elevation change in feet per minute?

Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

What is coefficient of the term of degree of degree 5 in the polynomial below

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?