<span>h = Williams hours
h + 2.5 = Jose's hours because he worked 2.5 hours more than William, so you add 2.5 to William's hours (which is represented by h) to get Jose's hours
then you add them together..</span><span>
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7.380 times 10 to the 9th power (or 7.38 times 10 to the 9th power)
Whats the question ill be happy to help