Opposite/adjacent= cosine
cos B= opp/adj
cosB= 7/12
B=cos^-1 (7/12)
(Type it into a graphing calculator)
B=54.3 degrees
Make sure your calculator is in degree mode and you use the inverse cosine.
3n-16<8
3n<24
n<8
............
The way you can solve percents is you do this (100+60-35). but you can change the numbers I'm just giving an example
Answer:
Step-by-step explanation:
79 would be the right answers