How would you do this and how would you graph it on the number line?

For what value of x does 4x = (1/8) x + 5?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Simplify the expression. -2/5(10+15m-20n)