The natatorium opens 2 hours before the start of a swim meet. The graph below shows the rate at which fans enter the natatorium as a function of time.
How many fans attend the swim meet?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?