10) which has the lowest price per ounce?
refer to the chart above < 3

The lowest price per once is: "Don's store" $ 0.101

Step-by-step explanation:

You have to apply a 3 way rule

so:

1) 60 oz $6.50

1 oz     =(1 oz X $6.50)/ 60

                = $0.108

2) 54 oz $5.50

    1 oz     =(1 oz X $5.50)/ 54

                = $0.101

3) 48 oz $5.61

      1 oz     =(1 oz X $5.61)/ 48

                = $0.116

4) 40 oz $4.50

      1 oz     =(1 oz X $4.50)/ 40

                = $0.112

Greetings

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

step-by-step explanation:

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