Respuesta :
Since it says ''about'', it is an estimating question.
38 will be rounded to 40 and 43 will be rounded to 40. 40 + 40 = 80. So about 80 buttons are in both jars.
38 will be rounded to 40 and 43 will be rounded to 40. 40 + 40 = 80. So about 80 buttons are in both jars.