What is equilivent to 5xa

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)?

Anyone know? will mark brainliest if you're correct!

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?