Thus, a genotype's frequency will decline or increase depending on whether its fitness is lower or greater than the mean fitness, respectively. In the particular case that there are only two genotypes of interest (e.g. representing the invasion of a new mutant allele), the change in genotype frequencies is often written in a different form.
1 Places such as Lowes and Home Depot will charge around $60 per day. 2  According to DoItYourself.com, they claim that average daily rental is going to be around $60 per day. 3  They also note that a good pressure washer should cost you around $350. 4  SunbeltRentals.com offers a variety of pressure washers.
The cost of using a pressure washer depends on whether you rent/buy one or hire a professional. Renting a pressure washer can cost around $50 to $65 a day or between $150 for a low-end model to over $1,500 for a top-end model. If you hire a professional to power wash your deck ahead of time, the cost is around $300.he cost of using a pressure washer depends on whether you rent/buy one or hire a professional. Renting a pressure washer can cost around $50 to $65 a day or between $150 for a low-end model to over $1,500 for a top-end model. If you hire a professional to power wash your deck ahead of time, the cost is around $300.