Julie spent $15 on 3 headbands. Mary spent $48 on 8 headbands. How much more did Mary spend per headband?
$5.50
$1
$2.13
$4

What properties allow transformation to be used as a problem solving tool

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?

Apasta salad was chilled in the refrigerator at 35° f overnight for 9 hours. the temperature of the pasta dish dropped from 86° f to 38° f. what was the average rate of cooling per hour?