The population of Houston was 1,900,000 in 2000. It grew to 2,100,000 in 2010. Find the percent of increase.
a. 10.5%
b. 20%
C. 21%
d. 40%

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.