HELP PLEASE Which of the following is closest to the circumference of a circle whose radius is 21 m?
7 m
66 m
132 m
33 m

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?