Given: p || q, and r || s. prove: ∠1 and ∠14 are supplementary angles. what is the next step in the proof? choose the most logical approach.

How many grams must be adde to 970g to make 1 and a half kg

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Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)