An 8.60 gram sample of hydrated crystal is heated to a constant mass of 5.9 grams. Calculate the percent, by mass, of water in the hydrate.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

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?