Sondra is going rock climbing. She starts at 12 1/4 yards above sea level. She ascends 38 1/2 yards before
lunch. She descends 15 1/8 yards after lunch. What is
Sondra's final height relative to sea level?
F.) 65 7/8 yd
G.) 49 5/8 yd
H.) 35 5/8 yd
J.) 11 1/8 yd

Ineed to learn how to solve this problem

What is the value of x in the following equation? -3x-2=2x+8

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?