50% of the children in a school have a dog, 32% have a cat, and 20% have a dog and a cat. What percent of those who have a dog also have a cat?

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?