Answer:
148 lbs
Explanation:
Given: Jon's weight loss for each week of the month is 4 lbs., 3.5 lbs. and 2 lbs. He gained 4.5 lbs. the last week.
To Find: If Jon originally weighted 153 lbs., how much does he weigh now
Solution:
Jon's original weight

Jon's weight loss in three successive weeks are



Total weight loss in three weeks is

Jon's weight after three weeks


Gain in Jon's weight

Jon's weight after 4 weeks


Jon weighs
now.