David works at the t-shirt shack selling tees. the equation y = 15x – 520 represents the profit that the t-shirt shack makes for each t-shirt sold, where y is the total profit and x is the number of t-shirts sold.
• how many t-shirts does the t-shirt shack need to sell to make a profit of $140?

Step-by-step explanation:

y = 15x - 520...and y represents the total profit

so if he wants to make a total profit of 140, sub in 140 for y and solve for x

140 = 15x - 520

140 + 520 = 15x

660 = 15x

660/15 = x

44 = x <=== they need to sell 44 t-shirts to make a profit of $ 140

cut 138 centimeters off

step-by-step explanation:

250-112 = 138