$x is divided among three boys, Ryan, Keith and Andrew, in the ratio 2 : 3 : 7, respectively. If Andrew gets $15 more than Keith, what is the value of x ?

To work out the heat change in a reaction we need to know just three things, the mass, the temperature change and the:

Common salt can be used to make all of these EXCEPT for:

Which of the following describes real accounts?

How much simple interest is due on a loan of $120 for two years if the annual rate of interest is 5 ¹/₂ per cent?

John Smith is employed at $8 per hour, he is paid time and a half for hours of work excess Of 44 hours per week. Last week worked for 50 hours. His gross earnings were

Which of the following social issues are associated with the use of illegal drugs by adolescents?

1. Criminal activity
2. Indiscipline
3. Early marriage
4. Poverty

Which of the following types of households in the Caribbean is MOST closely associated with ancestors who came from India?

0.0039 × 10^-2 in scientific notation is

In an endothermic reaction:

One Faraday represents:

If x = 3² × 2³, then x⁴ =

Cooking food improves all of these EXCEPT for:

Some plants reproduce by forming bulbs. The new plants that grow from the bulbs will be genetically identical
because:

The white blood cells that produce antibodies are called:

You look through a microscope to view the Brownian motion of smoke in a container of air. Which one of the following statements is NOT true?

When an acid neutralises an alkali the pH is likely to be:

Which of the following is NOT found dissolved in plasma?

The number of electrons in a full electron shell is: