Sam buys one bag of flour for $2.50, three packages of shredded cheese for $3.00 each, and two packages of mushrooms for $3.50 each. how much does sam pay in all?

The Answer is 18.5 which could also be 18.50

Step-by-step explanation:

x = 12

y = 15

step-by-step explanation:

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.