Mrs. Jones has a backyard in the shape of a square that is 27 feet on each side. After dividing each side into thirds, she wants to plant grass in the shaded areas shown in the diagram. How many square feet of the backyard will remain without grass?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z

Find measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale