Answer:
Step-by-step explanation:
A concave meniscus, which is what you normally will see, occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.
Answer in simplified expression: 5a+4
You do 15/3 = 5 so it is 5%
(50 - (2.75 + 4.25)) / 6 = (50 - 7) / 6 = 43/6 = 7.17 per day
