Please HELP!!:)4. Three species of poisonous snakes can be found in the Great Dismal Swamp. The total number of snake species
in the swamp is 21. Write and solve an equation to find
how many nonpoisonous snake species are in the
swamp.

Average acceleration: i have no idea how to do this.

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

What is always true when two whole numbers are subtracted?