Evaluating expressions

Evaluating expressions

When you evaluate expressions, you simply replace the variables(letters) with its given value(number). You can use desmos to help you get your final answer!

Multiple Choice

The price of a visit to the dentist is calculated according to the formula 50+100n, where n is the number of cavities the dentist finds. On your last visit to the dentist, two cavities were found. What was the cost of your visit?

• $150

• $200

• $250

• $300

Multiple Choice

An ice cream stand uses the expression 2 + 0.5x to determine the cost (in dollars) of an ice cream cone that has x scoops of ice cream. How much does an ice cream cone with five scoops cost?

• $2.50

• $3.50

• $4.50

• $5.50

Multiple Choice

The speed of a car is 60 miles per hour, so the distance it runs is 60 t miles, where t represents the hours the car runs. What is the distance the car travels if t = 5 hours?

• 65 miles

• 130 miles

• 260 miles

• 300 miles

Multiple Choice

You are saving for a skateboard. Your aunt gives you $45 to start, and you save $3 each week. The expression 45 + 3w gives the amount of money you save after w weeks. How much will you have after six weeks?

• $48

• $63

• $81

• $135

Multiple Choice

The expression 20a + 13c is the cost for a adults and c students to enter the Miami Science Museum. Find the total cost for 4 adults and 24 students.

• $392

• $93

• $532

• $1348