PLS HELP Suppose you change one of the 4-ounce weights to a 7-ounce weight. How much weight would you have to add on the right side to make the pans balance? Explain.

3x + 4y = 5 x- 3y = -7 solve by substitution

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?