Cost of Apps and Tax Calculations

The video tutorial covers algebraic concepts focusing on variables and expressions. It explains a word problem involving the purchase of apps and a gift card, incorporating tax calculations. The tutorial provides detailed solutions for different values of the variable n, demonstrating the order of operations and rounding in monetary calculations.

What is the primary focus of this lesson?

• Geometry and shapes

• Algebra, variables, and expressions

• Calculus and limits

• Statistics and probability

What is the tax rate applied to the purchase in the word problem?

• 5%

• 12%

• 10%

• 8%

If Joel buys 2 apps, what is the total cost before tax?

• $2.98

• $3.98

• $1.98

• $4.98

What is the total cost including tax when n=2?

• $7.54

• $8.54

• $9.54

• $6.54

How many apps does Joel buy when n=4?

• 3

• 2

• 5

• 4

What is the total cost including tax when n=4?

• $9.68

• $10.68

• $11.68

• $8.68

For n=7, what is the cost of the apps before tax?

• $6.93

• $7.93

• $8.93

• $9.93

What is the total cost including tax when n=7?

• $13.88

• $10.88

• $11.88

• $12.88

When n=10, what is the cost of the apps before tax?

• $12.90

• $11.90

• $10.90

• $9.90

What is the total cost including tax when n=10?

• $10.69

• $11.69

• $12.69

• $13.69