Cost. Evergreen Landscaping bought 4 tons of topsoil, 3 tons of mulch, and 6 tons of pea gravel for $ 2825$. The next week the firm bought 5 tons of topsoil, 2 tons of mulch, and 5 tons of pea gravel for $ 2663$. Pea gravel costs $ 17$ less per ton than topsoil. Find the price per ton for each item.
a) Topsoil: $ 175$, Mulch: $ 125$, Pea gravel: $ 150$
b) Topsoil: $ 150$, Mulch: $ 125$, Pea gravel: $ 175$
c) Topsoil: $ 150$, Mulch: $ 175$, Pea gravel: $ 125$
d) Topsoil: $ 175$, Mulch: $ 150$, Pea gravel: $ 125$