Which two statements relating investment costs and returns are correct?

a. Returns typically increase when investors pay a back-end load for every fund sold.

b. Returns may be lower than expected when investors pay brokerage fees for trading.

c. Returns may be higher when investors are charged inactivity fees.

d. Returns may be lower than expected because investors pay taxes on all income earned.

e. Returns may be higher than expected when investors pay commission to brokers.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb.the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.

The gdp is $1,465.2 billion. the population is 249,793,675. find the per capita gdp.