Express each fraction as a percent .round to the nearest whole number 178 over 450

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places

Can anyone explain to me how to do this? anything will .