Easy math question please help me. calculate the surface area and show work

What statement is true? 2x^2-9x+2=-1

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

Henry's butcher shop uses an electronic scale that measures to 1/100 of a pound. which is the most accurate measurement based on the limitations of the scale that might be found on a package of meat sold by henry?