Marsha likes to eat the cheese chris edges of pizza. she ordered a large pizza that measured 18 inches across. if the cheese crust edge measures 3 inches from the edge of the pizza, what is the circumference of the rest of the pizza?

Take the original diameter of 18 and subtract 3 twice from it since you have the crust on both sides to get 18-3-3=12.  Now use 12 as your diameter and substitute into the formula for circumference which is C=pi*d.  Now substitute the 12 in for d to get C = pi*12 inches or 12pi inches.

Step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b