George is using the figure below to prove that corresponding angles, ∠3 and ∠7, are congruent. He used the Linear Pair Postulate to determine m∠6+m∠7=180° and the Same Side Interior Angle Theorem to determine m∠3+m∠6=180°.

What could be the next valid step in his proof?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

Ill mark the brainliest if you me with the these three questions 7,8,9

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.