Why should most of the code for a program be written inside functions and classes?.

The formula to determine energy is e=1/2mv2? what is the formula solved for v?

Which of the following is the correct solution to the linear inequality shown below? y< 1/2x-4

Emily works as a painter. for each job, it takesher 30 minutes to prepare an interior wall ofa house before she paints and 2 minutes persquare yard to paint that will. the graph belowshows the total time it would take her to do a job,based on the total area of the wallhow long does it take her to do a job when she paints a wall with an area of 15 square yards?