2% percent of the students at hamilton middle school have red hair. there are 700 students at hamilton middle school. how many students at hamilton middle school have red hair?

Which system of linear inequalites is represented by the graph?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.