Savings and Loan Institutions.
715 miles / 11 hours = 65 mph
845 miles / 65 mph = 13 hours
It would take 13 hours to drive 845 miles.
x stands for a variable, in which the variable would be replaced by a number(s) that would make the equation true.
Hope this helps
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An expression for “7 divided by c” is 7/c or 7 ÷ c