Suppose the function H(t) gives the heart rate of a runner, t seconds after starting his 20 mile run until his run is complete. Describe an appropriate domain of this function. Include a description of the kinds of numbers in the domain as well as any limitations on their values.

Nine more than four times a number is the same as one less than twice the number. find the number?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Need on this geometry question. explain how you did it.