Writing Linear Equations from Situations

Jacob conducts an egg-drop experiment. He drops it from 32 feet in the air and it falls at 4 feet per minute. Write a linear equation to represent this situation.

A mechanic charges an initial fee of $75 plus an hourly fee of $50. Write the equation for the situation.

An airplane is 30,000 feet above ground and descends at the rate of 2,000 feet per minute. Write a linear equation to represent this situation.

Michael has $650 in his savings account. He withdraws $50 each week. Write a linear equation to represent the relationship between the weeks and the total money left in his savings account.

Lisa saves $20 every week. If she already has $200 in her savings account, write a linear equation to represent the total amount of money in her savings account after x weeks.

A balloon is released and rises at a steady rate of 100 feet per minute. If the balloon starts at a height of 50 feet, write a linear equation to represent the height of the balloon after x minutes.

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.

An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the situation.

Talk Time Phone Company charges $0.12 per minute of phone use plus a monthly service fee of $8.00 for its phone service. Which equation below can be used to find c, the total cost for one month when m, minutes are used?