Across-country racer travels 20 kilometers before she realizes that she has to cover at least 75 kilometers in order to qualify for the next race. if the racer travels at a rate of 10 kilometers per hour, how many whole hours will it take her to reach the 75-kilometer mark?

() at a farm, animals are fed bales of hay and buckets of gain.each bale of hay is in the shape of a rectangular prism.the base side lengths 2 feet and 3 feet,and the height is 5 feet. each bucket of grain is a cylinder with diameter of 3 feet. the height of the bucket is 5 feet as the height of bale. a. which is larger in area, the rectangular base of the bale or the circular base of the bucket? explain how you know b. which is larger in volume, the bale or the bucket? explain how you know

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

What is the rate of change of a line that passes through (2,-5) and (6,-2)?