I am selling 900 yearbooks making a total of $2820. The large yearbook pages cost $4 and the small cost $2.50. Find how many of each I sold.

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?