Answer:
48 pens
Step-by-step explanation:
6 times 8 is 48,
sam ordered 48 pens
—1/4, 0, 0.14, 1/4, 1, 1.4
10x+20y=540
x+y=34
y=34-x
Plug in (34-x) for y:
10x+20(34-x)=540
10x+680-20x=540
-10x=-140
10x=140
x=14
There were 14 ten cent coins and 20 20 cent coins