Atown has two shopping malls. a survey conducted on the shopping preferences of the town's residents showed that 62% of the residents visit comet mall, 73% of the residents visit star mall, and 48% of the residents visit both malls.
the probability that a resident chosen at random shops at either comet mall or at star mall is
%.

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

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)

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?