Aballoon factory tests 4 different materials for a new balloon. they will do the same number of tests on each material. the manager says that they need to do an odd number of total tests. how can they do this

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Find the value of x for which line a is parallel to line b

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.