Your correct. It is what you put down
To find the rate, we have to divide both numbers by 5. So the rate will be $1.592 for 1 pound.
8.54. The last number is low so it can not round up to 5
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! :)