The product of -15 and the quantity x minus 5

What fraction of one year is 8 months

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?