Math7 Q2 Integers, Geometry and Percentages

4/5% of 250 is n. Find the value of n.

Mr. Christian made a down payment of 40% on a brand new car worth P1,540,000. How much remains to be paid?

This week, Mr. Baria sold P84,500 worth of gadgets. He earned 10,450 in commission. What percent of his sales is his commission?

Matt invested P250,000 at an annual interest rate of 5 1/2%. How much will his income (interest) be after 4 years?

The price of an item is discounted by 40%. To restore it to its original price, how many percent must the discounted price be increased?

The cost of a watch including a tax of 15% is P4,557.50. What is the price without the tax?

The cost of a watch including a tax of 15% is P4,557.50. How much is the tax?

A rectangle is 90cm by 100cm. If the length is decreased by 10% and the width is increased by 20 %, what is the change in area?

True or false: Every integer greater than -1 is a whole number.

• TRUE

• FALSE

True or false: The set of rational numbers is closed under division.

• TRUE

• FALSE