Can someone explain how to figure this

a cell phone company orders 500 new phones from a manufacturer. if the probability of a phone being defective is 2.9%, predict how many of the phones are likely to be defective. round to the nearest whole number.

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14

Find the value of x for which line a is parallel to line b