Use an algebraic rule to describe a translation right 4 units and down 2 units.
A. (x, y) → (x+2,7-4)
B. (X.») → (x+4,7-2)
c. (x, y) = (x+2,y+4)
D. (y) → (x-4, y-2)
Please select the best answer from the choices provided

Well the answer should be (x,y) => (x+2, y-4). So i'm not sure if you misspelled option A because you wrote (x+2, 7-4). If that 7 is supposed to mean y, then the correct answer is A.

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet