Maggie has 2 3/4 yards of pink fabric, 1 1/8 yards of white fabric and 3 5/16 yards of yellow fabric to make a blanket. How many yards of fabric does she have?

Is this a polynomial function? i need to know asap

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

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”?