How do I find 287=66x+y

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss

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?