A= 3
b= 4
=3.14(a^2 + ab)
substitute the given a & b values in expression
=3.14((3)^2 + (3*4))
multiply inside parentheses
=3.14(9 + 12)
add inside parentheses
=3.14(21)
multiply
=65.94
ANSWER: 65.94
Hope this helps! :)
Answer:

Step-by-step explanation:
<h3>(2,1) (4,2)</h3>

Ok, um lets start with blue equation (5/8)*288=180 <<- Blue 180 voted for blue.
Ok Green is much easier 108-48=60 <------- Green 60 votes.