Choose the linear inequality that describes the graph. the gray area represents the shaded region.

a: 3x – 7y < –21

b: 3x + 7y < –21

c: 3x – 7y < 21

d: 3x – 7y > –21

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

X+ y = 5 ; x - y =3 solve using linear combination