Fred runs 200 metres in 21.2 seconds. (a) Work out Fred’s average speed.
Write down all the figures on your calculator display.

9.43 m/s

Step-by-step explanation:

Fred runs 200 metres in 21.2 seconds

FIND: Work out Fred’s average speed

aver speed = 200 m

                       21.2 s

                   = 9.43 m/s

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

it's d

step-by-step explanation: