My other question completely died and no one me so i guess i gotta repost, the homework is due tomorrow and i cant figure out how to solve, any is appreciated!

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

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?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?