400 10 *** SYSTEMS: BASIC LEVEL Example 1 (len) Suppan suppat [02] ent One-ninth of all sales at a local Subway are for cash. If cash sales for the week were $690, what were Subway's total 1/2 M= E(x) = @[1+0 /2 8/1/2 42 = XY + C = C 72 >I > S O Opa T