Petra walked 4 1/5 km. mandy walked 2 1/4 km less than petra. how far did they walk altogether

Answer this 30 points and brainliest!

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 g^-1(x) is the inverse of g (x) which statement must be true