To be honest I do t understand this but Carlos does so contact him
$4/3=$1.33 per pound.
$9/8 = $1.13 per pound.
The second one is cheaper.
<span>average rate of change = (f(7) - f(5)) / (x7 - x5)
</span>f(7) = <span>12 (7^3) + 12 = 4128
f(5) = </span>12 (5^3) + 12 = 1512
so
average rate of change = (4128 - 1512)/(7-5)
average rate of change = 2616 / 2
average rate of change = 1308
hope it helps
Holly traveled 52 miles in 1 hour
