Hi, does anyone know the answer. Thank you

The square root of 9x plus 7 plus the square rot of 2x equall to 7

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?