Gus bought a pair of sunglasses for $45.00 and then sold them to his friend for $58.50. what percent did gus mark up the sunglasses before selling them?

The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.

When the ball has traveled a distance of

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?