At a discount store, ground coffee averages $0.10 less per ounce than at a supermarket. Four college roommates purchase all their ground coffee at the
discount store. Estimate the annual savings. (7.68 ounces of ground coffee
make 1 gallon of coffee.)

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches

step-by-step explanation:

deez nut