Uncle Sam sells cups at a shop. For every cup he sells, he collects 20% of the price of the cup. For every 10 cups that he sells, he earns an extra 5% of the price of the cup. A cup is sold for $8. If he collects $86.80, how many cups does he sell?

Anyone know? will mark brainliest if you're correct!

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

The table below lists recommended amounts of food to order for 10 party guests. how much of each food item should nathan and amanda order for a graduation party with 55 guests? use the table to answer. item amount fried chicken 16 pieces lasagna 7 pounds deli meats 1.8 pounds sliced cheese 1 and two fifths pounds bakery buns 1 dozen potato salad 2 pounds