7 divided by 1/3 help asapp

Write the sentence as an equation. b increased by 281 is d

Abcd is a square. what is the measure of angle bac

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.