A wooden board is shaped liked a rectangular prism. It has a total volume of 324 cubic inches. The width is 3 inches less than the height and the length is 12 inches longer than the height. What are the dimensions of the board?

256

Step-by-step explanation:

a) is TRUE

b) is FALSE

c) is TRUE

Step-by-step explanation:

Let's call the propositions

P: Laura is in the seventh grade

Q: Laura got an A on the mathematics test

R:Sarah got an A on the mathematics test

Then we have that the following propositions are true

P, Q v R (Q or R) and R---> ~P (if R then not P)

By watching at the truth table attached, we can see that the only row that satisfies all that conditions is the second one highlighted.

From there we can deduct that,

a) is TRUE

b) is FALSE

c) is TRUE