Answer:
About Positive and Negative Numbers
Positive numbers are any numbers greater than zero, for example: 1, 2.9, 3.14159, 40000, and 0.0005. ... Negative numbers are less than zero (see the number line for a more complete explanation of this). Similarly, the opposite of any negative number is a positive number.
15 the answer would be and is 15
4/100= x/4,500 18,000/100= $180x2.5= $450
164 times 5 is 820. 824 minus 820 is 4. Therefore there will be 4 marbles left