2 3/4 divided by 4 1/8 in fraction form

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?