Which of the following is not defined as 0 integer for number b? (a) b / 0
(b) 0/ b
(c) b / 1
(d) 1 / b

What is the square root of 45? (step by step working plz)

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?