Hey I'd really appreciate some help with this problem please.
Kathie and her friend Tia are on their motorcycles heading north to Springfield on the same straight highway. Kathie leaves from a point 115 miles south of Springfield at 10:00 A.M., and Tia leaves from a point 29 miles south of Springfield at 11:00 A.M. Both girls maintain a constant speed of 75 mi/h.
(a) For each girl, find a linear equation that relates her distance y from Springfield at time x. (Take time x = 0 to be 10:00 A.M., so 11:00 A.M. would be time x = 1.)
for Tia:
distance = 29-75(t-1)
for Kathie:
distance = ..... (what do you think)