You invest $15,000 into an account for 18 years, there are no further deposits or withdrawals. the bank offers you three choices. which one do you choose? Show work to support your answer. option A: APR of 6% compounded semi-annually
option B: APR of 6% compounded monthly
option C: EAR of 6%
PLS HELP: this is for a end of the year project for my bridges to college learning math class

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Math it's appreciated. (picture provided)

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.