PLEASE HELP ME THIS IS IMPORTANT!! Ronnie, Bobby, and mike are singers from the group New Edition. They are raising money for studio time. Ronnie raised $30 more than Mike, and
Bobby raised $12 less than Ronnie. They collected $432 in total. How
much did Ronnie collect? And how much did mike collect? Also how much did mike collect?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

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?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis