Take 9 numbers forming a calendar and mark 4 number corner. Add the square of diagonal pair and difference of the sum​

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?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

If f(x)=x+7 and g(x)=1/x what is (fog)(x)