Given the system of equations presented here:
4x + y = 4
2x + 6y = 24
which action creates an equivalent system that will eliminate one variable when they are combined?
a. multiply the first equation by -4 to get -16x - 4y = -16.
b. multiply the second equation by -4 to get - 8x - 24y = -96.
c. multiply the first equation by -2 to get -8x - 2y = -8.
d. multiply the second equation by -2 to get - 4x - 12y = -48.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

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.

Rewrite so the subject can be y in the formula d=m-y/y+n