How much of a 70% orange juice drink must be mixed with 5 gallons of a 10% orange juice drink to obtain a mixture that is 50% orange juice?

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?