(2.2x10^-1)=22x10^-2
(22x10^-2)+(2.3x10^-2) = 24.3x10^-2
=2.43x10^-1
Therefore, the answer is D
You need to use y=mx+c to answer this so basically
gradient/slope (m) is 1.5 and the y-intercept (c) is -2
Hope this helps :)
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