Answer:
a=9.8
Step-by-step explanation:
a(2)+2(2)=10(2)
2×2=4 10×10=100
subtract 4 from 4 and 100
a(2)=9.6
use the two buttons on the scientific caculator. Click 2nd, then click x2(close to bottom left)
you will get a bunch of numbers only put down the first 3. (9.79)
ROUND THIS
9.79=9.8
a=9.8
