In a cafeteria, there are the same number of 3-legged stools as there are of 4-legged chairs. if stools have 120 fewer legs than chairs, how many people can sit in this cafeteria?

Imagine what x is quantity of stools. So
3x+120=4x
x=120
120 stools in cafeteria
120 chairs in cafeteria
120+120=240
There 240 people can sit in this cafeteria

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

It is 6% because if you subtract 69-58=6 so 6% is the answer to your question.