Bret is starting a business selling handmade necklaces. he has decided to invest and initial amount of $387 for advertising and materials cost seven dollars for each necklace he makes. bret can sell his creations for $10 per necklace. once he makes and sells a certain number of necklaces he will break even with identical expenses and sales. how many necklaces would that take? what would the total expenses and sales be then?

Muscles, a membership-only gym is hoping to open a new branch in a small city in pennsylvania that currently has no fitness centers. according to their research approximately 12,600 residents live within driving distance of the gym. muscles sends out surveys to a sample of 300 randomly selected residents in this area (all of who respond) and finds that 40 residents say they would visit a gym if one was located in their area. based on the past survey research, muscles estimates that approximately 30% of these respondents would actually join the gym if they opened one in the area. based on this information and the results of the sample survey, about how many residents should muscles expect to join its new branch? a) 134 b) 504 c) 1,680 d) 3,780

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Find the area of the triangle shown 3 by 6