5/7
explanation: (5-0)/(7-0) = 5/7
Yes. If we wanted to get even more specific, -2 is an integer, which falls under the label of the real numbers. √-2, on the other hand, is an imaginary number. The square root of -1 doesn't exist in the real numbers, so we invent a new number i with the property that i² = -1. Blending real and imaginary numbers together creates <em>complex numbers, </em>numbers with a real and imaginary part. This extension of the number system is tremendously useful because it essentially makes numbers two-dimensional, allowing us to manipulate and study them through a geometric lens.
Answer:4818
Step-by-step explanation:7785-12603=4818
Number one is A. Two is D and I think three is A ( I'm not entirely sure about the last one)