mohamad

An air plane is flying due east relative to still air at a speed of 320 km/h. There is a 65 km/h wind blowing to ward the north, as measured by an observer on the ground. What is the velocity of the plane measured by the ground observer?

Andrew is twice as old as Nicole if n represents Nicole's age which expression represents Andrews age

There are many varieties of libraraies information collections that have been built to serve the needs of many different people.

i don't know the answer

plz i need the answer

30

35

3+n 2+n 3n 2n I think a is correct

they are the choices can you plz help me understand