80+10x is the expression. To find the cost for 9 guests, simply plug in 9 for x. This becomes an equation reading 80+10(9)=170. The total cost for 9 guests is $170.00.
The unit rate would be 3 trucks per 1 hour you can find this by dividing 18 and 6 by 6
Answer:
Step-by-step explanation:
I think it is C
Answer:
Formula for circumference of a circle;
C = 2πr
To find the radius, we must find half(1/2) of the diameter.
Since we are given 6, we would find 1/2 of 6 which is <u>3</u>.
Now let's plug in these values into the formula:
C = 2πr
C = 2 x 3.14 x 3
C = 18.84 feet
