It costs $55 for Marcy to join a gym. After that, she is charged $19 per month. If she spent a total of $150, how many months has she used the gym? (i just need the answer i dont need work to be shown.)

43lbs of tomatos cost $387. how much would 41lbs cost

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Give me the equations of two lines that have the same slope but are not parallel.