Greetings!
An item at full price is 100%, or by using the percentage formula: 
If something is at 30% off, that means it is 70% of the original price (because minus the percentage from the 100%)
So by substituting the numbers into the percentage formula you end up with:
which is 0.7
So your answer would be D, 0.7!
Hope this helps!
Answer:
Weight of copper: 62,000 lbs. (31 tons). Weight of framework: 250,000 lbs. (125 tons). Weight of concrete foundation: 54,000,000 lbs. Thickness of copper sheeting: 3/32 of an inch, the thickness of two pennies placed together. the answer in 125
Step-by-step explanation:
The answer will be -22x^2-14x. Hope it help!
V = a²h/3
Plugging values in we get 8.67X10^7, or 86,700,000
In general, 23 more than a number is written as
In our case, x is 'twice a number'; thus,
Finally, the whole expression is
<h2>The answer is 2n+23</h2>
