Numbers are written from 1 to 50 on a piece of paper, dropped into a box, and chosen randomly. what is the probability of choosing a factor of 36?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?