Use PEMDAS
1. 2(2^2)-2
=2(4)-2
=8-2
=6
2. 2((-2)^2)-(-2)
=2(4)+2
=8+2
=10
I got 16,000 tubes are sold in half a day because there are 720 minutes in 12 hours, and 43,200 seconds in 720 minutes then you divide by 2.7 and get 16,000
<em>B</em><em>.</em><em> </em><em>y</em><em>=</em><em>3</em><em>x</em><em>+</em><em>1</em>
Step-by-step explanation:
<em>#</em><em>H</em><em>o</em><em>p</em><em>e</em><em>e</em><em>e</em><em> </em><em>Itttt</em><em> </em><em>Helppsssssss</em><em>!</em>
9^2 × 9^6=9^10/9^2
When multiplying exponents, if the bases are the same you add the exponents.
9^2 × 9^6 = 9^(2+6)=9^8
When dividing exponents, I'd the bases are the same you subtract the bottom exponent from the top.
9^10/9^2=9^(10-2)=9^8
9^8=9^8
Solution: 9^10 over 9^2
(17-5=12-1=11+8=19-2=(17-3=14)-3=11-3=8-3=5) wait maybe I got this mixed up with somthing else but...