A train leaves Little Rock, Arkansas, and travels north at 75 kilometers per hour. Another train leaves at the same time and travels south at 75 kilometers per hour. How long will it take before they are 450 kilometers apart?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

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?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test