1. Yes because of the constant and coefficient if you add it. Like the answer is 5m +4.
Be more specific I’m not understanding your question?
Answer:
12) 154 squared meters
13) 307 cm^2
Step-by-step explanation:
12) A circle has area pi*r^2
r is half the diameter so half of 14 is 7
pi in this case is 22/7
A=22/7 * (7)^2
A=22/7 * 49
A=22 *49/7
A=22 *7
A=154 squared meters
13) Area of rectangle is 10(18)=180
Area of half a circle is .5*pi*r^2=.5*pi*9^2
Adding the two areas together would result in a total area of 307.2 squared centimeters
210 Has 3,5,7 As Prime Factors
$58.50
30% of 45 is 13.5, and 13.50 plus 45 is 58.50
