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4. The sanctuary offers a discount on
memberships. Is the percent discount the same
for both levels of membership? Explain.
membership level-original price($)-discounted price ($)
individual - 50 - 41
family - 75 - 61.50

The percent discount the same  for both levels of membership.

Step-by-step explanation:

membership level - original price($) - discounted price ($)

individual               - 50                       - 41

family                     - 75                        - 61.50

41/50 = 0.82

1 - 0.82 = 18

The individual membership has an 18% discount

61.5/75 = 0.82

1 - 0.82 = 18

The family membership has an 18% discount

The percent discount the same  for both levels of membership.

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