Stephanie earns 4,000 a month , plus a 10 % commission on everything she sells. if during one month , she sold 50,000 worth of product , what was her salary for that month?

What’s the question here? what have you been learning about?

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)