Im debating between b. and c. but I'd go more with C.
Answer: Devon, Tasha, Liza, Effon
Step-by-step explanation:
From the question, we are informed that four friends race their bikes down the street and that Evan finishes in 6.2 seconds, Devon in 6.0999 seconds, Liza in 6.188 seconds, and Tasha in 6.168 seconds.
The order that shows the friends' times from fastest to slowest is:
• Devon
• Tasha
• Liza
• Effon
Devon used 6.0999 seconds which is the fastest time, after then Tasha comes next with 6.168 seconds, then Liza with 6.188 seconds and lastly Effon with 6.2 seconds
Answer:
a. 59.73_3 ft²/h
b. 5.093 h
c. $149.95
Step-by-step explanation:
a. The specified unit rate is ...
... (square ft)/(hour) = (10.5 ft)(12.8 ft)/(2.25 h) = 134.4 ft²/2.25 h = 59.73_3 ft²/h
b. The wall area is the product of the perimeter of the room and its height:
... A = (2(l+w))h = 2(10.2 ft + 6.7 ft)·(9 ft) = 304.2 ft²
At the above rate, the time required is ...
... (304.2 ft²)/(59.73_3 ft²/h) ≈ 5.093 h
c. If the charge is proportional to the time required, the charge for painting the basement walls will be ...
... $66.25/(2.25 h) = charge/(5.093 h)
... (5.093 h)/(2.25 h)×$66.25 = charge ≈ $149.95
_____
Note that the number 5.093 shown here is a representation of the number 5.09263392857 used in the calculations. Only the final numbers are rounded in each case.
The underbar in 59.73_3 is a text representation of the overbar usually used to signify the repeating digits in a repeating decimal:
... 
Hello
The answer is 45 people if you break down the equation you can get 60 -10 is 50 then subtract 5 to get 45 and you have your answer
Hope this helps
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