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Answer: I agree with Sita.
Step-by-step explanation:
An infinite number is a very big number which is impossible to physically achieve. I agree with Sita because when Rita is forming equations on and on to an extent of not knowing when to stop. That is when she can say to infinite. And I don't think this is possible.
Answer:

Step-by-step explanation:
The standard form of a polynomial is its representation in a descending order starting from the term with the highest degree to the one with the lowest.
Here,
Answer:
f(-1) = 7
Step-by-step explanation:
Put -1 where x is and do the arithmetic.
f(-1) = 2(-1) +9 = 7