In our solar system there are 6 out of 8 planets have moons what percentage of the planets that have moons

You'd take 6/8 and then you'd get .75 but for percentages you move the decimal to the right 2 places which is 75%

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)