*A semicircle has a diameter of 6cm. Calculate the perimeter of the circle.
Show all you're your working clearly.
Give your answer to 2 decimal places.

Explain how you can use the associative property to evaluate (7x50)x4.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?