I need help learning about the basics of shifting functions and, I need my most recent question answered i'm DESPERATE!!! (my teacher is no no help and i've watched a handful of vids)

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.