Write -0.5 repeating as a fraction or mixed number

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.