Bridget has $240. she spent

of her money, she saved the rest, how much did she save and how much did she spend? (step by step plz)

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?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Ineed i been stuck on this question since yesterday