2 and 5/8 + 1 and 3/4

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which letters from the table represent like terms? a and b b and c a and d b and d