which describes amara's mistake?
she should have drawn a concave lens instead of a convex lens.
she should have drawn the image right-side up instead of upside down.
ray 2 should cross through the focal point on the right side of the lens.
ray 3 should point at a downward angle after passing through the len

Ray 2 should cross through the focal point on the right side of the lens.

Explanation:

For the image formation of the ray diagram we know that

1) Light ray passing through the lens which is passing through the focus before refraction must become parallel after refraction through lens

2) Light ray passing through the optical center of the lens must move out undeviated from the lens

3) light ray which is parallel to the principle axis before refraction must move through the focus after refraction through lens

so here we can see that ray 2 is incorrectly drawn here

so we have

Ray 2 should cross through the focal point on the right side of the lens.

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.