SAT Practice Questions #1

• 2

• 4

• 9

• 10

On Saturday afternoon, Armand sent m text messages each hour for 5 hours, Tyrone sent p text messages each hour for 4 hours. Which of the following represents the total number of messages sent by Armand and Tyrone on Saturday afternoon?

• 9mp

• 20mp

• 5m + 4p

• 4m + 5p

Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P = 108 - 23d

where P is the number of phones left and d is the number of days she has worked that week. What is the meaning of value 108 in this equation?

• Kathy will complete the repairs within 108 days.

• Kathy starts each week with 108 phones to fix.

• Kathy repairs phones at a rate of 108 per hour.

• Kathy repairs phones at a rate of 108 per day.

h = 3a + 28.6

A pediatrician uses the model above to estimate the height h of a boy, in inches, in terms of the boy's age a, in years, between the ages of 2 and 5. Based on the model, what is the estimated increase, in inches, of a boy's height each year?

• 3

• 5.7

• 9.5

• 14.3

If t > 0 and t² - 4 = 0, what is the value of t?

• 4

• 0

• 2

• -2