Algebra pls help me:)

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm. dist(80,475,33,1) =norm. inv(0.80,475,33) =norm. s.inv((80-475)/33)?

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.