profit percent and loss percent

Ten Percent Law - Lindemann (1942) put forth ten percent law for the transfer of energy from one trophic level to the next. According to the law, during the transfer of organic food from one trophic level to the next, only about ten percent of the organic matter is sto..

A person purchased 6 bananas for $2.25 and he sold it at $1.25. How much is the loss in percent? => 49% or 42% or 59% or 44%..

Andrew buys a computer for $4,100 and sells it for $4,600. Find the percent of the profit he made. => 14.2% or 22.2% or 12.2% or 13.2%..

is the number of units of volume of the solute per 100 units of the volume of solution. ..

What percent of the figure is not shaded? => 70% or 40% or 60% or None of the above..

What percent of the figure is shaded? => 70% or 40% or 60% or 50%..

What percent of the figures are squares? => 30% or 60% or 50% or 40%..

What percent of the figures are triangles? => 80% or 100% or 90% or 0%..

Estimate the percent shaded in the figure. => 20% or 25% or 30% or 35%..

What percent is shaded in the figure? => 15% or 16% or 30% or 20%..