Last question on my hw please help me!

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

The triangles are similar. what is the value of x? enter your answer in the box.

The second term of an arithmetic sequence is 30. the fifth term is 90.calculatei). the commor difference of the sequence ii). the first term of the sequence tje first, second and fifth terms of the arithmetic sequence are the first three terms of a geometric sequence calculate the seventh term of the geometric sequence