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.
NW Washington State, 50 gallon natural gas hot water heater replacement, no upgrades (out with the old, in with the new - only new tank and fittings as needed). Lowe's tank $ 499 ($554 quoted out the door with local tax and sundries) . Lowe's install quote $ 359. Install seems high to me and a few others by about 30%.