Gary and Ann have a joint checking account. Their balance at the beginning of October was $9,145.87. During the month they made deposits totaling $2,783.71, wrote checks
totaling $4,871.90, paid a maintenance fee of $12, and earned $11.15 in interest on the
account. What was the balance at the end of the month?

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.  

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

c.

step-by-step explanation:

t

step-by-step explanation:

ever thing time 1 is a multiply by 1 it get