10) When water freezes, its volume increases
by approximately 10%.
a) By how much does the volume of a) 10
-- = 0.1 0.1x750=75mL
750 mL of water increase when it 100
b) What is the volume of ice created? b) 825mL
14) 4% of 100 is the same as 8% of what
number? Explain how you arrived at
I arrive at 4% is half of 8% and 50 is half of 100
13) Suppose a real estate agent receives 5%
commission on the ﬁ rst $200 000 of a
house’s selling price, and 6% on the
a) What does commission mean? a) Commission is the portion of the sale price that the real estate agent earns.
b) If a house sells for $345 000, how
much commission does the real estate
agent make on the sale of the house? b) $18 700
Comment if I did something wrong.