If the diagonal of a television screen is 20 inches and the width is 16 inches, what is the height of the screen?

Which system of linear inequalities is represented by the graph? !

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i