If c(x)=5/x-2 and d(x)=x+3, what is the domain of (cd)(x)?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon