Function notation word problems
"Princess Tower" in Dubai is considered the world's tallest residential building, towering to 101 floors!
T(n) models the number of tenants living on floor n of the tower.
What does the statement T(60) > T(10) +T(30) mean?

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