Which pair shows equivalent expressions?
2x+10=-2[x-5)
0 -2(x+5)=2x-10
-2x-10=-2(x+5)
0 -2(7-5)=-2x-10

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

If sin(x) = 0 and cos(x) = 1, what is tan(x)?