Well I'm still trying to solve the first question so I'll tell you the other answers
the answer for the second question is :

and for the third question :
Answer:
Guessing you want me to figure out what your cost should have been. On it!
Step-by-step explanation:
130 * .15 = 19.5
130 - 19.5 = $110.5
That should be the new cost.
Volume=legnth times width times height
legnth=8
width=5
height=4
volume=8 times 5 times 4=160
volume is 160 cubic inches or 160 in^3
The answer to your question is 20
Hi, sorry i couldn't understand the format of the question, could you post a picture of the question please?