TLE po pa tulong guys please

Directions. Solve for the number of board feet of the followin Ceces of lumber and dimension. Note: Solution 3 points each, correct answer 2
1. 15 pcs - 2" X3"X14'
2. 60 pcs - 2"X2"X72"
3. 75 pcs -1"X12"X14'
4. 50 pcs 2"x3"x120"
5. 48 pcs - 3"X4"X9'​