Classrooms on one side of the science building are all numbered with consecutive odd integers. If the first room, the room with he smallest classroom number, on this side of the building is numbered k, write an expression in terms of k for the sum of the first four classroom numbers in a row. Then simplify this expression.

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

answer:  

123455421

step-by-step explanation: easy

table 3 represents a direct variation function. : )