7+x, because the sum means adding.
Total is 61.36 not sure how much she should leave for tip
8-2 = 6 per plate profit
6x
they spent 150 so it would be -150
6x - 150 = 2400
Answer:
r represents the rate the electric company charges per kilowatt-hour.
Step-by-step explanation:
r represents the rate the electric company charges per kilowatt-hour.
Total charged to Zhao was 63.25 out of which 3.50 is administrative charge (fixed).
- Total charge consists of "administrative charge" + "charge per kilowatt hours*hours used
- The equation is given as 63.24 = 3.5 + 800r
<u>Matching the "word equation" with "mathematical equation", we see that 800 is the hours used and r is the charge per kilowatt hour.</u>
Answer:
Step-by-step explanation:
Can I have the rest of the question(picture)?
