Atlantic auditorium has 850 seats. tickets were sold for 816 of the seats. for what percent of the seats were tickets sold?

2 ways
1. math
2. math+logic (easier)

1.
percent means parts out of 100
x%=x/100

816/850=x/100
times both sides by 8500
8160=85x
divide both sides by 85
96=x
answer is 96%

2. easier
816/850=0.96/1
multily it by 100/100 to make it over 100 and into percent
96/100=96%

answer is 96%

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

The answer of the above question is