Please help! Struggling on these few. Thank you :)

2. Which list has the numbers in order from least to greatest?

9.4 × 102, 4.9 × 102, 9.4 × 103
9.4 × 103, 4.9 × 102, 9.4 × 102
4.9 × 102, 9.4 × 102, 9.4 × 103
4.9 × 102, 9.4 × 103, 9.4 × 102

3. A company's projected worth (in millions of dollars) is modeled by the equation y = 236(1.07)x. The variable x represents the number of years since 1997. What is the projected annual percent of growth, and what should the company be worth in 2007?

7%; $433.88 million
17%; $252.52 million
17%; $496.75 million
7%; $464.25 million

10. Which list has the numbers in order from least to greatest?

5.4 × 103, 4.5 × 104, 5.4 × 104
5.4 × 103, 5.4 × 104, 4.5 × 104
5.4 × 104, 5.4 × 103, 4.5 × 104
4.5 × 104, 5.4 × 103, 5.4 × 104

20. Which function is greatest at x = 3?

f(x) = 4x
f(x) = x4
f(x) = 3 • x4
None of the functions is greater than the others.

3 answers

I would like to see your thinking, these are very basic questions. I need to understand what is confusing you.
@bobprsley I have my what I think thw answer is answers. They are, C, B, D, and B
on scientific numbers, it will help you greatly if you convert them to ordinary
example 4.5 × 104, 5.4 × 103, 5.4 × 104
45000
5400
54000
then order them.

on percents: 1.19 is a 19 percent increase. 1.03 is a three percent increase. 1.07 is a ...

on functions:
x
2x
x^2
4x^2 do to evaluate when x= some number, you put that number in, and calculate.

You got one of the four correct, but I think it was a lucky guess.
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