I've been stumped forever! : ( point estimate? poll's margin of error? fill in the blanks:

the results of a poll show that the percent of people in a town who oppose the construction of a new bus station is in the interval (0.35, 0.43) .

what is the point estimate for the percent of people in the city who oppose the bus station?

what is the poll's margin of error?

the point estimate for the percent is
__ .

the poll's margin of error is
__ %.

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)