Y=4x-1 is the equation of a straight line graph. what is its gradient ?

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)?

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?