18? because 45 divide by 5 is 9, and 5 cookies minus 3 is 2, so multiply 9 by 2 for 18
The expression in scientific notation is given as follows:
3.5 x 10³.
<h3>What is scientific notation?</h3>
A number in scientific notation is given by:

With the base being
.
For this problem, the expression is given by:

When two factors of a multiplication have the same base and different exponent, we <u>keep the base and add the exponents,</u> hence:

5 x 4.2 = 21, hence the expression is:

When we divide two terms with the same base and different exponents, we keep the base and subtract the exponents, hence:

Which is the simplified expression.
More can be learned about scientific notation at brainly.com/question/16394306
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Answer:
1380
Step-by-step explanation:
Multiply 276 by 5
Answer:
I added an answer. It was -2x^4
Step-by-step explanation:
Answer:
give me the bubble bubble I really do not know