A farmer buys several gallons. g. of fertilizer for $8.25 each and an
irrigation unit for $65. He spends a
total of $683.75. Determine the
number of gallons of fertilizer the
farmer bought

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?

What is the value of p in the equation y^ = -4x?

Math i have no idea how to do a and b