The equation describes the total cost of buying packets of trading cards. The variable denotes the number of packs bought, and the variable represents the total cost in dollars. How much will Michael pay for 5 packs of cards?
If , what is the value of ?
Find the value of in the equation .
The equation describes the number of hours, , that Olivia studies in days. How many hours does Olivia spend studying in 5 days?
Is the equation true or false if ?
This year, 558 people attended the school play. Last year, 609 people attended the same play. Victoria believes the equation shows the decrease in the number of attendants from one year to the next, while Olivia believes the equation should be instead. Which student is correct? How many fewer people attended the concert this year?