Simplify the algebraic expression by combining like terms: 2a+8+4v+5

2a + 4v + 13

Step-by-step explanation:

This is the answer because we do not know what a and v represent, but we do know that 8 + 5 = 13. Therefore, we can simplify the equation to 2a + 4v + 13.

2a + 4v + 13

Step-by-step explanation:

This is the answer because we do not know what a and v represent, but we do know that 8 + 5 = 13. Therefore, we can simplify the equation to 2a + 4v + 13.

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

19

step-by-step explanation: