A farmer sells apple cider in 2 quart bottles. How many bottles will he need to hold 70 gallons of cider

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?