5 (2 x + 1 )= 50 please help me

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Which expression converts 45 degree to radians

Find the slope of the line passing through a pair of points