Find the value of x for which abcd must be a parallelogram

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?