If C=s−5 C=s−5 and D=s−8,D=s−8, find an expression that equals C+2D C+2D in standard form.

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.