Tricia reads $20$20 pages of her book in $2$2 hours.
Which of the following is the unit rate of pages per hour?
$10$10 pages/hr
$2$2 pages/hr
$20:2$20:2
$10:1$10:1
A car travels $320$320 km in $4$4 hours.
Justin earns $\$420$$420 in $6$6 hours.
Which of the following represents Justin's hourly rate?
Tina burns $640$640 calories by jogging $8$8 kilometers.
Which of the following represents the rate at which Tina burns calories per kilometer?