IV. Learning Activities LET'S TRY THIS Read and analyse each problem below. 1. A bridge approach has 40 supporting columns, each being 55 cm taller than the one before it. If the first is 40 cm tall, how tall is the last? 2. If a nurse has a salary of Php 18, 000 on her first year, and in due to get a raise of Php 500 each year, then what will her salary be in eight year? 3. The number of patients infected by COVID-19 doubles each day. If there are 15 COVID patients currently residing in a barangay, how many people will be infected by COVID after 6 days? 4. The Balogo auditorium has 60 rows of seats, what is the seating capacity of the auditorium if there are 30 seats in the first row, 36 seats in the second raw, 42 scats in the third raw, and so on? 5. There is a pile of bricks in the backyard. There are 30 bricks in the 1st layer, 23 in the 2nd, 16 in the 3rd, and so on with the last layer having 2 bricks. How many bricks are in the backyard? Page 4

given and asked.
complete solution.
final answer.

pls answer.​