Answer:
To find the percent increase in the puppy's weight, we can use the formula:
% increase = ((current value - initial value) / initial value) * 100
% increase = ((35 - 19) / 19) * 100
% increase = (16 / 19) * 100
% increase = 84.21%
So, Elijah's puppy has increased 84.21% in weight. Rounded to the nearest whole number is 84%.
Explanation: