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Alex works in a shop where the normal weekday rate of pay is $12 per hour. On Saturdays she is paid time and a half.

How much did Alex earn in a week in which she worked for seven hours on Thursday and three hours on Saturday?

• $84

• $120

• $138

• $180

if

 $w=\frac{15y}{y+12}$  and y=7, find the value of w.

• 5.53

• 8.26

• 15.75

• 27.00

This is a sketch of a sector of circle.

Calculate the area of this sector (correct to 1dp)

• 9.4 m²

• 18.8 m²

• 36.8 m²

• 84.8 m²

Simplify

 $3\left(x-2\right)-2\left(x-1\right)$  

•  $x-4$  

•  $x-3$  

•  $x-1$  

•  $x-8$  

The number represented by a 1 followed by one hundred zeros is called a googol. Which of the following is equal to a googol?

• 10²

• 10¹⁰

• 10⁹⁹

• 10¹⁰⁰

The following frequency table shows Ravdeep's scores on a number of quizzes.

• A

• B

• C

• D

A computer was purchased for $2500 and depreciated over six years, as shown in the graph.

By how much did the computer depreciate each year?

• $200

• $250

• $300

• $350

The arrow is spun and will point to one of the four colours when it stops. If the arrow is spun twice, what is the probability that it points to the same colour both times it stops?

• $\frac{1}{16}$

• $\frac{1}{8}$

• $\frac{1}{4}$

• $\frac{1}{2}$

Joyce measures the length of a piece of wood as 250 mm, correct to the nearest mm. What is the percentage error in her measurement?

• 0.002%

• 0.004%

• 0.2%

• 0.4%

What is the equation of the line

 $l_{ }$  

•  $y=6x+2$  

•  $y=x+2$  

•  $y=3x+2$  

•  $y=\frac{1}{3}x+2$