A 90% confidence interval is (35 45). What is the margin of error? A.5
B.4.5
C.9
D.10

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

2/3(-6y+9x) expand each expression using the distributive property

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms