At the end of the month, a medical office has 86 envelopes remaining. if the office uses 7 envelopes per day, on which day of the following month will the office likely run out of envelopes?

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: