Answer:
company A charge less than company B if y > 75 miles
Step-by-step explanation:
given data
Company A charges = $135
Company B initial fee = $75
additional charge = $0.80
solution
we consider here driving = x mile
and mileages for company A charge less than company B = y
so
when Charges of company A = charges of company B than equation will be
$135 = $75 + $0.80 x ....................1
solve it we get x
x = 75
so here mileages for which company A charge less than company B is
y > 75
company B is better if the distance is < 75 miles
company A is better if the distance is > 75 miles