At the beginning of an experiment, there are 600 grams of contaminants. Each hour, half of the contaminants are filtered out. How many grams of contaminants remain after 4 hours?

There are 63 couples lined up for an egg tossing contest. Each couple will get one egg. There are 12 eggs in a dozen, and eggs come in one dozen cartons. How many cartons of eggs are needed for the contest?

The sum of three consecutive multiples of three are 54 more than twice the smallest number. What are the three integers?

Simply the following expression 3/7 + 5/14

Mary bought more than 72 pencils to distribute to children at an orphanage. She packs these pencils in gift boxes. If she packs 4 pencils each into x gift boxes, the inequality that represents this situation is.

Alan and Connor have £6.70 in total. Alan has £1.79 more than Connor. Let a be the amount of money Alan has. Let c be the amount of money Connor has. Set up a pair of simultaneous squat and solve to find out glue much each person has

The cost of performance tickets and beverages for a family of four can be modeled using the equation 4x + 12 = 48, where x represents the cost of a ticket. How much is one ticket? $3.00

49.005 -7.157 show how you would work it out. Having trouble trying to explain it to my daughter with this common core math.

Round the number 2,787 to the nearest hundred

During a bike challenge writers have to collect various colored ribbons each 1/2 mile they collect the rent with each 1/8 mile they click the green ribbon and each 1/4 mile they collect the blue ribbon which colors of ribbon will be collected at the

If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charged a joining fee of $149. The monthly membership cost is $38.75. a.