Writing Algebraic Expressions

Kathleen lost a tooth today. Now she has lost 4 more than her sister Cara. Which expression represents Cara's lost teeth? (K=Kathleen)

Kathleen lost a tooth today. Now she has lost 4 more than her sister Cara. Which expression represents Kathleen's lost teeth? (C=Cara)

Kathleen lost a tooth today. Now she has lost 4 more than her sister Cara. If Cara lost 3 teeth, how many teeth has Kathleen lost?

Which expression represents Jenna's years of experience? (A=Allie)

When Allie has 20 years of experience on the job, how many years of experience will Jenna have on the job?

Which expression represents the amount of money Anna makes working H hours?

How much money will Anna earn for working 3 hours?

Sarah is saving money to take a trip to Oregon. She received $450 in graduation gifts and saves $120 per week working. Which expression shows how much money Sarah has after working W weeks?

When corn seeds germinate, they tend to grow 5 inches in the first week and then 3 inches per week for the remainder of the season. The expression for this height is 2 + 3W. How tall will the corn plant be after 15 weeks of growth? (W=Weeks)

Naomi’s allowance is $2 per week. If she convinces her parents to double her allowance each week, which expression would represent her allowance in W weeks?