Katie went shopping and bought 4 sweaters that each cost the same amount and 1 skirt that cost $20. She spent a total of $160. What was the cost of each sweater?

Find the lateral surface area plzzz

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.