2. Lara and Maria are making T-shirts to raise at least $500 for their youth group. Their start-up costs include $150 for a T-shirt printer. Plus, it cost $3.50 per T-shirt. They are selling the T-shirts for $15.00 each. All of the profit will be given to the youth group. The profit is the money left after paying for the start-up costs and the T-shirts. How many T-shirts must Lara and Maria sell to raise at least $500?​

What is the simplified expression for 6(2(y+x))

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.