The perimeter of the semicircle is 51.42 cm Calculate the value of the diameter d.
Take pi to be 3.142
use this expression to find your answer : πd/2 + d

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

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

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.