If the 180 food calories found in a granola bar come entirely from p grams of protein, f grams of fat, and c grams of carbohydrate, which expresses f in terms of p and c? a)f = 180 − pc  b)f = 180 + p − c  c)f = 180 − p − c  d)f = 180 − (p − c)

If you assume that calories and grams are interchangeable (which they are not), then you can start with

... f +c +p = 180

and subtract everything that is not f on the left.

... f = 180 - p - c . . . . . matches selection C)

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm