Pls Help me people keep getting it wrongpls the is half of my grade in the class please help Please name them too

Step-by-step explanation:

1) Circumference of cake = 25 1/7 inches

r = 4 inches

Area of cake = πr²

                     = 50.2857

                     =  50.29 in²

2) Area of square = side *side = 5 * 5 = 25 ft²

Diameter of semicircle = 5 ft

radius = 5/2 = 2.5 ft

Area of two semi circles = 2 * (1/2) πr² =  πr²

                                         = 3.14 * 2.5 *2.5

                                        = 19.625

                                         = 19.63 ft²

Area of the part of logo that still is green = 25 - 19.63

                                                                       = 5.37 ft²

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

594 square inches

step-by-step explanation:

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