which unit would be best for measuring the thickness of a coin meter , centimeter , millimeter or kilometer

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The balance of susu's savings account can be represented by the variable b. the inequality describing her balance b > $30 . which could be a solution to the inequality?

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.