Name two different numbers that round to 30 when roundedto the nearest 10

Ucan draw that on a graph sheet and count the no. of units and apply the area formula of rectangle

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)

D.