Answer:
correct answer is 10
Step-by-step explanation:
a1 = 10 correct
a2 = 10+10 = 20
a3 =20+10 = 30..
Pi divided by 2 is <span>1.57079632679 so anything bigger than 0 and less than that number should be between.</span>
The answer is four. It's like asking to give the least common denominator
"Half of a number decreased by 27" can be displayed as:
<u>1/2x - 27</u>