whats wrong with these sentence?

Question

1. The most largest whale ever reported were 106 feet long.

that sentence has 4 mistakes.

2. Although a whales heart can be as big as a car it beats only 9 times a minute.

that sentence has 3 mistakes.

thank you so much.
please no RUDE answers.
esp. OFFENSIVE ones.

Answer 1

The largest whale ever reported is 106 feet.

take MOST out
change WERE to IS
take LONG out
(can't figure out the last one)

WHALE'S (with S)
comma after CAR
9 should be NINE
(can't figure out the last one)

Answer 2

the incorrect are in (), the correct are []
The (most) largest whale ever reported (were) [was] 106 feet long. I only found 2.
Although a (whales) [whale's] heart can be as big as a car[,] it beats only (9) [nine] times a minute.

Answer 3

I don't know all but
1. take most (unecessary), was (past tense)

2. whale's (possesion), comma after car, write out "9" (since it is a short number)