Ex 2 brenda invests $5000 into an account that offered 3.4% interest compounded semi- annually. a) calculate the amount of money that brenda has in the account after 6 years. luke also invested $5000 into an account that offered r% interest compounded annually. after 6 years he had $6250 in his account. calculate r.

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?