Chuck E. Chemist is working on his charismatic science fair experiment. He mixed some 6% saline solution with some 12% saline solution and ended up with a total of 30 milliliters of 10% saline solution. How much of each type of saline did he mix together?

Answer this question! 30 points and brainliest!

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?