The figure consists of a tangent and a secant to the circle. Find the value of x. Leave your answer in simplest radical form

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Someone me! if you’re smart you can solve this!