In triangle, STU, ST = 52, and TU = 39. What is the range of values for the length third side? A - (-13 < SU < 13)

B - (13 < SU < 91)

C - (13 < SU < 52)

D - (-13 < SU < 91)

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

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”?