Use the grid to create a model to solve the percent problem. What is 20% of 90

18

Step-by-step explanation: 20% of 90 is 18

20% or 0.2

of is another word for multiply

90*0.2=18

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

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)