Here is a rectangle. 1. Explain why the area of the large rectangle is 2a + 3a + 4a.
2. Explain why the area of the large rectangle is (2+3+4)a. a
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Amonument at a park is in the shape of a right square pyramid. a diagram of the pyramid and its net are shown. what is the surface area of the monument? enter the answer in the box. m²

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.