Answer:
I believe it's C
Step-by-step explanation:
The answer to your question would be 'A'
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! :)
34.I
for this problem you just multiply the 20 by 2=40
and then you add 40+3=43
which will equal

35.G
if you divide

so G

36. C

so if you subtract

will equal

Answer:
42 square yards
Step-by-step explanation:
T.S.A of cube

where l = 7yd

thus, the surface area of cube is 42 square yards