Expressions Real World

Mary has $5. Mary's uncle agreed to pay her $3 for each book that she reads. Write an expression representing the total money she will have after reading m books.

• 5 -  3 - m

• 5 - 3m

• 5 + 3m

• 3m - 5

It costs $0.15 to send a text message from your phone. You have to pay a $2 fee each month to be able to send text messages, no matter how many you send. Write an expression representing the total cost after sending m text messages each month.

• 0.15m + 2

• 0.15m - 2

• 2m + 0.15

• 2 + 0.15 + m

Kelli sells T-shirts on a website. She can make $3 from each T-shirt she sells. Every month she must pay $20 to the website no matter how many T-shirts she sells. Write an expression representing the money (in dollars) Kelli earns after selling k T-shirts each month.

• 3k + 20

• 3 + 20k

• 3k - 20

• 20 - 3k

You go to a bookstore to buy books by taking a taxi. Each book costs you $5 dollars. The taxi fee is $10. Write an expression representing the total cost (in dollars) after buying k books.

• 5k + 10

• 10 - 5k

• 10k + 5

• 5k - 10

You want to order jeans from an online website. Each pair of jeans costs $35, and there is a $5 shipping and handling charge no matter how many pairs of jeans you order. Write an expression representing the cost (in dollars) of ordering j pairs of jeans.

• 35j + 5

• 35 + 5j

• 35 - 5j

• 5j -35

You want to buy 2 pairs of shoes on a website. The cost of one pair of shoes is x dollars and the shipping fee is $4. Write an expression representing the amount of money (in dollars) you will pay.

• 4x + 2

• 2x + 4

• 2x - 4

• 4 - 2x

A website charges $5.99 to download a game, and there is no membership fee. Write an expression to represent the total cost of "g" games.

• 5.99

• 5.99g

• g

A website charges $5.99 to download a game, and there is a $6.99 membership fee. Write an expression to represent the total cost to download "g" games

• 5.99g

• 6.99g

• 5.99g + 6.99

• 6.99g + 5.99

Kym has saved $42 per month to purchase a DVD player for her television. Write an expression to represent the total amount saved after "m" months.

• m

• 42

• 42m

Kym has already saved $80 and will continue to save $42 per month to purchase a DVD player for her television. Write an expression to represent the total amount saved after "m" months.

• 42m

• 80m

• 80m + 42

• 80 + 42m