Cody Ray's credit card company uses the unpaid-balance method and charges a monthly periodic rate of 1.8%. His finance
charge was $17.54, he made $376.90 in new purchases, and a $250.00
payment. Find (a) his unpaid balance, (b) previous balance, and
(c) new balance.

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2