A firm has a revenue that can be represented by r(x)=800x-0.2x, where r(x) is the total revenue and x is the number of units sold Part A:
Determine the number of units that produce the maximum revenue
Part B:
Determine the number of units that produce no revenue.

Ateacher asked his students to vote for an animal to be their class pet. five-eighteenths of the students voted for a rabbit, voted for a snake, and voted for a hamster. which statement is true? more students voted for a hamster than a snake. more students voted for a snake than a rabbit. more students voted for a rabbit than a hamster. more students voted for a snake than a hamster.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Ratio of circumference to diameter example plz i need to now what it looks like.