Help looks like i forgot to read a ruler

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?