To find the circumference you must, multiply the radius by two to get the diameter. Then you multiply that to Pi (3.14159 ect..) to get the circumference.
Divide 32 by 8, which is 4, and you get the number of points for each question.
Answer:
$(a + b) + cn cent
Step-by-step explanation:
Given :
Fixed charge = $a
Rent of a meter = $b
Charge per unit of electricity = c cents
The total cost of using n units of electricity :
For n units of electricity ;
Fixed charge is paid once
Meter rent is paid once
The cost of electricity = (number of units * cost per unit) = (n * c) = nc cents
Total cost of n units of electricity :
$(a + b) + cn cent
$84+$96-$10
(add or subtract from left to right) $180-$10
(simplify) $170
