.- Si con cada 1 244 kg de papel reciclado se salvan 18 árboles, ¿con cuantos kilos de papel se salvarán 8 árboles?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of