If a fuel efficient car can go 210 miles on 4 gallons of fuel, how far can it go
on 12 gallons?

The distance covered by the car in 12 gallons of fuel is 630 miles.

Step-by-step explanation:

Distance covered by car in 4 gallons of fuel = 210 miles.

Let us use unitary method to find distance covered by car in 1 gallon of fuel.

Distance covered by car in 1 gallon of fuel = 210/4 miles.

Let us use unitary method to find distance covered by car in 12 gallon of fuel.

Distance covered by car in 12 gallons of fuel = (210/4)*12 = 630 miles.

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

answer: apothems is your answer

step-by-step explanation: hope u get it right