How to solve 21=3x+3y

What is the unit rate for: 6 eggs in 7 days I also need some work, but I dont know how to show it.

What is the 3rd term when - 4x+6x3+2-2x2+x4 is arranged in descending order

Giselle works as a carpenter and as a blacksmith. She earns $20 dollar per hour as a carpenter and $25 per hour as a blacksmith.

A can of green beans costs $0.59 and a can of mushroom soup cost $0.98. How much will Mr. King have to spend on green beans and mushroom soup in order to make his 108 servings of casserole?

Compare:45/30 O 4.5/3

The mileages of cars in a fleet of cars are normally distributed with a mean mileage of 52,000 miles and a standard deviation of 2,000 miles. What is the probability of randomly selecting a car with a mileage less than 52,000 miles?

Round 12,406.4578 to the nearest thousands

Juanita bought a square calculator that has a measurement of 8.2 sq cm on one side. What is the area of the calculator?

Can 3 gallons and 5 tons be expressed as a ratio?

After eating at a restaurant alex bill before tax is 78 the sales tax rate is 8% Alex decides to leave a 20 % tip based on the pre - tax amount how much money will alex pay in total including the tip and tax