Let the amount Tom does = x
Then Larissa’s time would be 3x( 3 times the amount of Tom)
And Neal would also be 3x
The total of the 3 is 84 hours so as an equation you have:
X + 3x + 3x = 84
Combine like terms
7x = 84
Divide both sides by 7
X = 84/7
X = 12 hours
Tom = x, so Tom exercised for 12 hours.
<h3>C. <u>x > 42 </u></h3>
<u>Hope</u><u> </u><u>this will</u><u> </u><u>help</u><u>.</u><u>.</u><u>.</u><u> </u>
The range is 6. because the highest number is 21 and the lowest is 15.
(21-15=6). hope i helped !
If you use the scientific notation to simplify these bigger numbers it will make it easier
