Jake runs 11 feet per second. Brooke runs 283 feet in 19 seconds.
Ron runs 1 mile in 434 seconds.
Stephanie runs 645 feet in 1 minute.
who runs the fastest

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)