36
Step-by-step explanation:
5x-6+3x+90=180
8x+84=180
8x=96
x=12
Plug it in to 3x
3x12=36
X= - 4/5
Answer for number 10
2) Decimals to percentage is 32.6%
1.2 .10/2=120.0( standard form)
because the exponent of the 10s term is positive we must move the decimal point 2 places to the right.
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Answer: B 35/4
Step-by-step explanation: