A bicycle trail in the shape of a circle has a diameter of 3 miles. Michelle biked around the trail 4 times. About how far did Michelle bike? A. 19 miles B. 28 miles C. 38 miles D. 113 miles

C

Step-by-step explanation:

The circumference of a circle can be found by multiplying the diameter by pi. Therefore, the circumference of the circle is about 9.5 miles, and biking around it 4 times would be about 38 miles. Therefore, the correct answer is choice C. Hope this helps!

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: