Look at the diagram which of the following is a pair of vertical angles

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work