Simply follow the units into quantities
E/(mT) = c
Where
E = energy
m = mass
T = temperature
c = specific heat
Solving for T
358/(15*T) = 0.385
T = 62°C
85*.15=12.75
85-12.75
72.25
The sale price is $72.25
Converting the fractions to decimals you would get -0.6 and 0.2.
Subtracting those two decimals would get you -0.8.
Converting it back into a fraction would get you - 8/10.
Your answer is -8/10
<h2>
Explanation:</h2><h2 />
This problem has missing information, so I've provided my own diagram below.
By Alternate Interior Angles:
Angles ∠6 and 48 degrees are supplementary:
Internal angles of every triangle add up to 180 degrees:
Finally: