The first one is 2x-3y/2
The second one is 1/x+2
The third one is (2x-5y)/(2x+5y)
The fourth one is x^2/z^2
Answer:230
Step-by-step explanation:
To get to 100% you need to do 20% 5 times so if 46 people is 20% 46x5 will give you 100% of people surveyed
14 students play a brass instrument :)

Cross multiply:

Distribute 4:

Take away 4xy from both sides:

Take x as the common factor:

Divide both sides by p - 4y :