The function that best represents the data is y = 0.75x + 4.5. The slope in this case represents the increase in the amount she spends in $ due to the number of cards she makes. The intercept with the Y axis (4.5) means that she has an expense of 4.5 $ without having made any card yet.
If you want to add radicals then radicals should be same as variables in polynomial expressions. If radicals are not equal in nature then we cannot add them. In the case of polynomials, if the variables are not same then we cannot add them. The variables should have the same exponents over them.
Answer:
-11
Step-by-step explanation:
