### Home > CCA2 > Chapter Ch12 > Lesson 12.2.3 > Problem 12-136

12-136.

Without using a calculator, solve these two problems from a college entrance exam.

If

, find.Solve the first equation for

, then use that value to find the answer.If

, find .

12-136.

Without using a calculator, solve these two problems from a college entrance exam.

If

, find.Solve the first equation for

, then use that value to find the answer.If

, find .