para ayudar a una fundación, algunos estudiantes de grado séptimo decidieron reunir alimentos y donarlos. Andrea aporto 2,5 hg de arroz, mateo llevo - kg de frijol, catalina ayudo con - kg de arroz y juan coopero con 3,75 kg de frijol A) ¿ cuanto arroz y cuanto frijol recogieron en total B) ¿Qué recogieron mas, arroz o frijol?

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Can someone explain to me how to do

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?