At a fast food restaurant, 10 cheeseburgers w/onion and 5 orders of french fries contain 6800 calories. 5 cheeseburgers w/ onion and 3 orders of french fries contain 3590 calories. how many calories are in a cheeseburger w/ onion? how many calories are in one order of french fries?

For the equations below which statement is true ? -2x=14 6x=-42

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?