The probability of picking a blue marble when there are 12 blue and 20 purple.

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

I’m really confused and need your assist me with this question i’ve never been taught

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a