1. a box of chalk and 2 duster cost Rp. 46.000,00
a boxes of chalk and 2 duster cost Rp. 82.000,00

find the total cost of 1 box of chalk and 1 duster.

2. sally and mabel had the same number of cards at first. after sally sold 42 of her cards, mabel had four times as many cards as sally.

how many cards did each girl have at first?

tolong yang Dari Indo Bantu pls