This is false, because every positive and negative number is real.
A theorem requires a proof.
When two numbers have a sum of 0
Answer:
$63
Step-by-step explanation:
The full price of the tank is $90 which is also 100% of the price.
Since the sale is 30% off, and 100% - 30% = 70%, the sale price is 70% of the original price.
70% of $90 = 0.7 × $90 = $63
It grows i hope i helped a lot