Isra goes to Starbucks and uses her Starbucks app to pay for…
Isra goes to Starbucks and uses her Starbucks app to pay for her coffee when thirsty and drowsy. With each purchase, she receives a Starbucks star and when she accumulates 40 stars, she can exchange her Starbucks stars for a coffee of her choice. In this example, the Starbucks stars are ____________ and the coffee is a ______________.