In the figure above, for which point is the x-coordinate positive and the y-coordinate negative?

The table shows the distribution of the ages of 25 students.

What is the probability that a student chosen at random is AT LEAST 13 years old?

Water passes out of leaves through the:

Which one of the following statements about an ammeter is NOT true?

The mean of ten numbers is 58. If one of the numbers is 40, what is the mean of the other nine?

After a 5% discount, an article is sold for $475. The price before the discount was

Urea is made from surplus proteins in:

An enzyme which has an optimum pH of 3 will function best in the:

Hydrochloric acid forms salts called:

If p * q = pq² , then 2 * 3 =

The nucleus of a carbon atom has six protons and eight neutrons.Which one of the following describes it?

Which of the following statements about diffusion is NOT true?

Two separate forces are acting on a bar to cause it to rotate clockwise. One force is 20 N, at a distance of 3 m out from the pivot; the second force, 2 m further out, is 10 N. Their combined moment is:

The two main protein groups are globular and:

How many subsets does the set {a, b, c, d, e} have?

John Jones pays his employees by cash. How will he record this payment in his books?

Adding mineral water to anhydrous copper sulphate turns it:

The interest rate on investments in a bank increased from 5 per cent per annum to 6 ¹/₂ per cent per annum. The difference in annual interest on a deposit of $4000 is

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

As the teacher continued his lesson, John began to lose all interest, imagining himself laying on his bed relaxing.

The pie chart above shows how a student used 10 hours per week for studying English (E), Mathematics (M), French (F) and Geography (G), The amount of hours spent studying French is approximately