Question 771394
{{{ d = r*t }}}
{{{ r = 70 }}} mi/hr
{{{ t = 1.25 }}} hrs
{{{ d = 70*1.25 }}}
{{{ d = 87.5 }}} mi
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{{{ 87.5 / 30 = 2.9167 }}} gallons
She needs roughly 3 gallons
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For 87.5 miles, she spends
{{{ 2.9167*3.5 = 10.208 }}} dollars
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{{{ 10.208 / 87.5 = .117 }}}
She spends 12 cents / mile on the freeway