Please answer see the image

the answer should be 76.333...(nearest tenth 76 ) or 26.

Step-by-step explanation:

since she was already at 151 feet below, I subtracted 229 with 151 and got the answer 78 so after it I just divided it with 3 cause she went down in 3 seconds and the answer could be 76.333 if we dont subtract 229 with 151.

(sorry, my explanation is bad)

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula