Student track team members have to buy running shoes at the full price of $84.50, but those who were also team members last term get a 15 percent discount.Those who have been team members for at least three terms get an additional 10 percent off the discounted price. How much does a student who has been a track team member at least three terms have to pay for shoes?
There are 176 men and 24 women serving the 9th Precinct. What percentage of the 9th Precinct’s force is women?
The basal metabolic rate (BMR) is the rate at which our body uses calories. The BMR for a man in his twenties is about 1,700 calories per day. If 204 of those calories should come from protein, about what percent of this mans diet should be protein?
The condition known as Down syndrome occurs in about 1 in 1,500 children when the mothers are in their twenties. About what percent of all children born to mothers in their twenties are likely to have Down syndrome?
If a population of yeast cells grows from 10 to 320 in a period of 5 hours, what is the rate of growth?
A certain water pollutant is unsafe at a level above 20 ppm (parts per million). A citys water supply now contains 50 ppm of this pollutant. What percentage of improvement will make the water safe?
