FRIDAY | Yolanda has a total of 100 songs on her computer. She has these songs categorized into two types of music, country or rap. The number of her rap songs is 14 more than three times the number of her country songs. Which system of equations can be used to determiner, the number of rap songs, and c, the number of country songs? А r+c=100 r = 14 - 30 B r+c= 100 c=14 - 3r с r+c = 100 C = 14 + 3r D r+c=100 T = 14 + 30 How many rap songs does Yolanda have?​

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

How is working backward similar to solving an equation?

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?