You will set it up so that the two equations are equal to each other.
2,200 * (2.31 * 10^x) = 1.05 * 10^y
Then depending on what you have learned you either plug in each value and check, or solve it mathmatically.
The steps for solving mathmatically:
Distribute the 2,200.
5082 * 22000^x = 1.05 * 10^y
Next divide both sides by 1.05
4840 * 20952.4^x = 10^y
I don't know if that is to the power of y or times y?
Last one
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F(0)= (0)2 - 6(0) + 21
f(0)= 0 - 0 + 21
f(0)= 21
This is just a matter of subbing ur answer choices into the equation to see which ones make the equation true
y = 8x
solutions are : (2,16), (1,8), (-3,-24)