Gabriella and Michelle are a few meters apart, at one end of a football field. Pierre is at the other end of the field, and he sees both of the them moving toward him 4m/s. From Michelle's point of view, how is Gabriella moving? Group of answer choices

Gabriella is moving toward her at 8m/s

Gabriella is moving away from her at 4 m/s

Gabriella is moving toward her at 4 m/s

Gabriella is not moving

Gabriella is not moving

Explanation:

This type of problem can be solved by having the concept of relative velocities clear. Two bodies move at Equal velocity 4 [m/s] towards Pierre. But they ask us about how Michelle sees Gabriella moving.

Since Gabriela moves at the same speed as Michelle, when Gabriela turns her head to see Michelle, she doesn't seem to move faster or slower than she does.

A classic example is when we are passengers of a car and in a window next door we see, a car next to us, this car seems static before our eyes, but we are aware that it moves at a speed equal to that of the vehicle we occupy.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form