What does the shaded portion in the venn diagram given along side​

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?