Show your work in sketch.

(x-2)10

Answer ; 10x - 20

Explanation; Multiply each term in the parenthesis by 10. Then multiply the numbers, and you get your answer.

Answer 10x - 20

Hope that helped

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

Bis the correct answer