Inequality problem pls help ! it’s important

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Simply 8x squared + 5(7x squared- x) - 2x =

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?