Please help with number 3!

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12