Will give brainliest, 5/5 rating, and

there are 3000 people at a concert you survey a random sample of 200 people and find that for 35 of them this is their first concert they have ever attended estimate how many total people are attending their first concert that night

35 out of 200 = 35/200 = 0.175 = 17.5% of the people surveyed are attending their first concert.

Now multiply all the people at the concert by 17.5%

3000 x 0.175 = 525

There are about 525 people total attending their first concert.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

25% is the answer