The diameter of a circle measures 28 mm. What is the circumference of the circle? Use 3.14 for y, and do not round your answer. Be sure to include the correct unit in your answer.

C = 87.92 mm

General Formulas and Concepts:

Symbols

π (pi) ≈ 3.14

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Circumference Formula: C = πd

C is circumferenced is diameter

Step-by-step explanation:

Step 1: Define

Diameter d = 28 mm

Step 2: Solve

Substitute in variables [Circumference Formula]:                                          C = 3.14(28 mm)[Circumference] Multiply:                                                                                 C = 87.92 mm

The answer maybbe c

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.