The formula for a regular polygon, which this one is, is A = 1/2 ap where a is the apothem and p is the perimeter. 20.8 * 7 = 145.6 which is the perimeter, so now just multiply by 21.6 and .5. 145.6 * 21.6 * .5 = 1572.48, or B above.
Answer:mean you have to switch define
1. Subtraction property of equality
2. Division property of equality
Step-by-step explanation:
Answer:
1 chocolate will cost about $0.73
Explanation:
You'd have to fine the unit rate. To do so you divide the cost,$11, by the number of chocolates,15 .
Step 1. Subtract the 6y-9y which will give you -3y-4
Step 2. Add 4 to both sides, which will give you -4y = -2y +2
Step 3. Add 2y to the other side, which will
Give you -2y = 2
Step 4. Divide both sides by -2, which will give you -1
