A company is tracking how many of the cell phones it produces do not meet specifications. It runs a simulation 100 times and records how many defects are in each simulated sample of 1000 phones.

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Find the zeros of each function. f(x) = x^2 + 5x - 6

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.