Shurley bought a new bed and now needs to find pillows, sheets, and a comforter for it. She wants to have black or white pillows; striped or plaid sheets; and a solid, polka-dot, or zebra-print comforter.
How many unique bedding combinations can Surely make?

how am i supposed to answer

step-by-step explanation:

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

m∠a is 90°

m∠b is 40°

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.