A certain species of fish costs $5.99 each. You can spend at most $20. How many of this type of fish can you buy for your aquarium?

The Answer is 3 fish and you will have $2 left over

Step-by-step explanation:

If you round  $5.99 I will become $6 and 6 x 3 = 18 so you would have to spend $18 to get 3 fish.

Hope This Helps!! (,'-',)

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