Someone help me please only 7, 8, and 9 thank you

How do you find the area of a triangle

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.