part 1 : bill’s car gets 30 miles to the gallon.  for every gallon of gas it consumes, his car runs 30 miles.  use this information to determine whether this relation is a function.  write the equation for the number of miles bill travels,  y, in terms of how much gas it uses,  x.this is part plz

Bill’s car travels 30 miles per gallon of gas. If y represents the number of miles the car travels on x gallons of gas, the equation that represents this situation is y = 30x.

x=1, y=30

x=2,y=60

x=3,y=90

Step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.