Here is how Han found 31.59 - 13: 1. At the second step, Han subtracts 52 from 55. How do you know that these numbers represent tenths? 2. At the third step, Han subtracts 39 from 39. How do you know that these numbers represent hundredths? 3. Check that Han's answer is correct by calculating the product of 2.43 and 13.​

d

step-by-step explanation:

what is the graph

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.