Step-by-step explanation:
By 30°-60°-90° triangle theorem:

Answer: true
Step-by-step explanation:
To find a percentage, you need to divide 7 by 9 to find out what 7/9 is.
It turns out to be 0.777 repeating.
To find a percentage, you need to move the decimal place over by two to the right, so 7/9 is equals to 77.77%.
If you round that, then 77.77% is closest to 78%.
Hope this helps!
80,000, eighty thousand, 300,000 + 80,000+ 9,000+400+20+2
Hope that helped you!