Answer:
For example, 8f + 4g is one of the most used expression
Another example is 4 (2f + g), is correct too
.040 pounds is .64 ounces.
Each bag is 10.53 ounces.
100% probability
The problem here is: Too many words.
If you boil the problem down to the bare facts, the question is:
"$210 is 15% of what number ?"
I'm pretty sure you can take it from there,
but here's the rest of it anyway:
$210 = 15% of (March amount)
$210 = 0.15 x (March amount)
Divide each side by 0.15 : $1400 = March amount .
Check:
1400 + 210 = 1610
1.15 x 1400 = 1610 yay!
Isolate the d
divide 7 from both sides
c/7 = 7d/7
c/7 = d
d = c/7 is your answer
hope this helps
