The function f(x) is the cost of renting a boat where x represents the number of hours rented not to exceed 12 hours. any portion of an hour is rounded up to the next whole hour. what is the practical domain for the function f(x)? [0,24] {1,  2, 3, 4,5, 6, 7, 8, 9, 10, 11,  12} all real numbers [0,12]

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?