What do the following two equations represent? -4x-5y=-4 4x+5y=0

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?

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week