Answer:
F
Step-by-step explanation:
Hopefully this helps.
(x^2-1)(x^2+7) should be your answer
Answer:
8 boards.
Step-by-step explanation:
Since he bought a few of each length. The only combination that works is when he bought 5 of the 4 ft long board so 4×5=20. Than he bought 3 of the 5ft boards 3×5=15. 20+15=35 ft worth of boards.
To blurry if you need help just contact me
