Explain how showing fractions with models and a number line are alike and different

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Find the quotient. 50a2 – 98b2 -5a +7b

The table represents a linear function. what is the slope of the function? –6 –4 4 6