What is the solution 2/3x+3 x=-2

Find the maximum value of p= 4x + 5y subject to the following constraints :

The lengths of two sides of a triangle are 9 and 15. what can be said about the length of the third side? a. it must be greater than or equal to 6 and less than 24. b. it must be greater than or equal to 6 and at most 24. c. it must be greater than 6 and less than 24. d. it must be greater than 6 and at most 24.

Acarpenter must cut a piece of wood so that it fits tightly into position. the carpenter cuts 3/16 of an inch off the wood so that it measures 4 1/2 inches. what was the size of the original piece of wood?