What is the volume of this pyramid?

7560 cm³
5040 cm³
2520 cm³
1728 cm³

Fred bought 3 cd’s for $16.50 is this multiplication division subtraction or addition

What is the greatest common factor of 8 and 36

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?