Answer d, because the equation is stating 3= $4.41, we are trying to figure out how much 4 cost
The answer is reduction. This can be found by the size and number differences in the two quadrilaterals.
Christy would have to work 50 hours to pay off her holiday debt. It would be 10 dollars overtime too if you thought about it.
To find the average you add up all the trials (13 + 9 + 7) divided by the amounted trials (3)which equals 9.67s
14+17+11/3 = 14
16+ 21 + 19/3 = 18.67
Circumference = 2πr
So the circumference of the track is C = 2π .2 or .4π
3 times around the track is .4π x 3 or 1.2π - this is the answer but most teachers will want you to use 3.14 for pi.
so 1.2 x 3.14 = 3.768 km
Do you notice that I waited until the end to use the actual value of pi (3.14) in my calculations.
Keeping things in pi units until the very end saves time.