There is a proportional relationship between the volume of a sample of helium in liters and the mass of that sample in grams if the mass of a sample is 5 grams it's volume is 28 liters (5,28) is shown on the graph below What is the constant of proportionality in this relationship

Step-by-step explanation:

answer: 12

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh