Ok is 3 plus 3 is 6 doesnt that mean 6 plus 6 is 12 ?

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

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?

Kerion has a beaded necklace business. she can make 12 necklaces is 2 hours. how long will it take her to make 9 necklaces?