Unit cost is the cost for one ounce so $1.40 divided by 20 ounces gives the cost for one ounce. The unit cost is .07 or seven cents per ounce.
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84 is 140% of 60.
10(N+14)=9N 10N+140=9N N=-140 I can verbalize this, I hope you can. Check 10(-140+14)=9(-140) 10(-126)=-1260 -1260=-1260
The GCF of 140, 168 and 210 is 14.
3.1416 x 140 feet = 440 feet (approx)
If you mean 5x = 140 then the value of x is 140/5 = 28