Gomes found the masses of three rocks for a science project. the first rock had a mass of 19.29 grams, the second rock had a mass of 25.3 grams, and the third rock had a mass of 46.3 grams. how much greater was the mass of the third rock than the combined mass of the other two rocks?

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?