Answer:
I'm assuming you want me to do 18-23? Okay:
Step-by-step explanation:
<u>18) </u>8.6(10^−4)+6.7(10^−5)
=0.000927 --> 9.27 × 10^-4
<u>19)</u> 3.5(10^3)−9(10^1)
=3410 --> 3.41 × 10^3
<u>20)</u> 5.6(10^4)(4.5(10^6))
=252000000000 --> 2.52 × 10^11
<u>21)</u> 7.6(10^−7)(8.9(10^−2))
=0 --> 0
<u>22)</u> 3.9(10^−12)/4(10^4)
=0 --> 0
<u>23)</u> 1.75(10^5)/5(10^−3)
=35000000 --> 3.5 × 10^7
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<em>Please comment below if you would like me to solve #24 :)</em>
<em>The bolded numbers are the answer, the underlined numbers are to show the question number. Hope this helped !!</em>
