Sally and marta had the same number of postcards. after sally sold 18 of her postcards, marta had 4 times as many postcards as sally. how many postcards did each girl have to begin with?

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h