10/21 equal to 2a/a+b

A. 41/10

B. 10/13

C. 5/16

D. 1/13

Show me all the answers for 26000 in expanded notation

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Sally can paint a room in 7 hours while it taks steve 9hours to finsh the same room. how ling will it take them to paint if they worked together?

A buffet offers ranch or caesar dresing. The ratio of ranck dressing used to caesar dressing used is 8 : 3. If the buffet uses 72 cases of ranch dressing, how many cases of caesar do they use?

What is the vertex of y=-2x^2+10x+1 and is it a minimum or maximum