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.
Pressure washing jobs are generally quoted per square foot of area to be cleaned. Estimate for Do-It-Yourself Pressure Washing: Doing it yourself could run from $75-$500 if you buy or rent a pressure washer. Estimate for Professional Pressure Washing: Hiring a professional could cost from $200-$500, depending on the size of your house. Pressure washing jobs are generally quoted by square feet of area to be cleaned.