7. Melissa wants the city to provide every Farrington classroom with recycling bins and is in the process of
collecting student signatures for her petition. So far
Melissa has collected 82 signatures and wants to
collect 15 signatures for each classroom she visits
during advisory time. If S is the total number of
signatures Melissa has collected, and C is the number
of classroom visited, write an equation.

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?