Please help dont answer if u dont know it

c

Step-by-step explanation:

The answer is c. The formula for slope is change in y/change in x. To find the slope of this line, let's randomly choose 2 points from this graph.  To keep this simple let's just choose the points (1, 1) and (2, 3). Let's subtract the y coordinate 1 from the y coordinate 3 to find the change in y. You will get 2 as your change in y.  Now, lets subtract the x coordinate 1 from the x coordinate 2 and you should get 1 as your change in x.  Now, all that's left to do is put it together 2 (change in y)/1 (change in x) is 2/1 which can be simplified to 2. So the answer is c. 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

can someone answer this question plz

step-by-step explanation: