Mike needs $315 to buy a new cell phone. He has already saved $115 and plans to save an additional $10
per week.
Write an equation for this problem.

Ireally wish i can my h

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)