Please help i need a answer on how to do hard
math

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Can someone me out here number 4 plz