Answer:
Question 1:
(A) 22.5 weeks
Question 2:
(A) 35
Step-by-step explanation:
Question 1:
Given:
The line of best fit is given as:

Where,

Height of the puppy (y) = 54 cm
Now, plug in the value of 'y' and solve for 'x'. This gives,

Therefore, the puppy was 22.5 weeks old when he was 54 cm tall.
Question 2:
The line of best fit is given as:

Where,

Number of times at bat (x) = 175
Now, plug in the value of 'x' and solve for 'y'. This gives,

Therefore, the number of hits is 35 to the nearest whole number.