All you need to do is 125/13 so the correct answer is 9.61 Naturally I would round up so I would chose B. 10
8 because inverse operations indicate that 4x2=8
X^2+6x+9=0
(x+3)(x+3)=0
x=-3 There is only one unique way.
There are total 80 dimes in the jar. B/c...
n+d=200 = n=200-d
0.05n+0.1d=$14.00
0.05(200-d)+0.1d=$14.00
10-0.05d+0.1d=$14.00
10+0.05d=$14.00
-10 -10
0.05d=$4.00
0.05d/0.05=$4.00/0.05
d=80