Work out the perimeter of this semicircle. Take a to be 3.142 and write down all of the digits given by your calculator.
18 cm

Look at attachment. has all info needed. need

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?