Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

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?