To model 15 – 11 on a number line, begin at and travel 11 units to the left. to model 16 + 7 on a number line, begin at 16 and travel 7 units to the

Geometry answer picture question pls . reason and statements

Which of the following statement about pascal's triangle are true?

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.