math
posted by Dell .
Terry, Dan and heidi have a total of $850. Dan has $120 more than Terry and Heidi has $190 more than Dan. How much money does heidi have?

d = t+120
h = d+190
t+d+h = t + (t+120) + (t+120)+190 = 850
t = 140
so, d = 260 and h = 450