18900cm = 189m
189 / 1.8 = 105m.
The blackboard's length in meters is 105m.
Answer:
<h2>x<-1</h2>
Step-by-step explanation:
![7 > 2x+9\\\\\mathrm{Switch\:sides}\\\\\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}\\\\2x+9-9](https://tex.z-dn.net/?f=7%20%3E%202x%2B9%5C%5C%5C%5C%5Cmathrm%7BSwitch%5C%3Asides%7D%5C%5C%5C%5C%5Cmathrm%7BSubtract%5C%3A%7D9%5Cmathrm%7B%5C%3Afrom%5C%3Aboth%5C%3Asides%7D%5C%5C%5C%5C2x%2B9-9%3C7-9%5C%5C%5C%5C2x%3C-2%5C%5C%5C%5C%5Cfrac%7B2x%7D%7B2%7D%3C%5Cfrac%7B-2%7D%7B2%7D%5C%5C%5C%5Cx%3C-1)
Answer:
b.
The unit prices are based on the cost of the whole package, so divide each base cost by each unit price to get comparable units.
Step-by-step explanation:
That's the Kolakovski sequence,
The answer is 24 multiplied by 10 to the power of 4