An ice cream truck started the day with 45 ice cream sandwiches. During a stop at a busy park they sold s ice cream sandwiches. After the stop, the truck had 21 ice cream sandwiches remaining. Write an equation to describe this situation

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point