QUESTION 1/7

Sugar is sold in four different sized packets. Which is the best buy?

QUESTION 2/7

The distance between Bricktown and Koala Creek is 75km. A person travels from Bricktown to Koala Creek at an average speed of 50km/h.

How long does it take the person to complete the journey?

QUESTION 3/7

Joan invests $200. She earns interest at 3% per annum, compounded monthly.

What is the future value of Joan's investment after 1.5 years?

QUESTION 4/7

A plumber charges a call-out fee of $90 as well as $2 per minute while working. Suppose the plumber works for *t* hours.

Which equation expresses the amount the plumber charges ($C) as a function of time (*t* hours)?

QUESTION 5/7

QUESTION 6/7

y = √2𝑥 - 3?

QUESTION 7/7

Define h(𝑥) = f(g(𝑥)).

How many stationary points does y = h(𝑥) have for 1 ≤ x ≤ 5?

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