The correct answer is C.
Because: 2.9 multiplied by 10 bags equals 29cubic ft and she needs 30 cubic ft. So she would need to buy 11 bags to make sure she has enough sand for the whole thing. 11 x 2.9 = 31.9 which ensures she has enough for the whole thing including extra in case. So you answer would be Answer C.
Answer: I belive the answer is C
Step-by-step explanation:

Applying the factorization method, for example:




Applying the factorization method:



It will be a horizontal line at y=7 and shaded above. If you have pictures of the graph I can show which one it would be.
Answer:
slope 4
y intercept 0, 4
Step-by-step explanation: