The bar chart shows the distribution of marks in a class test. How many students took the test?

If 9(x - 12 1 2 ) 3x2

Solve without using tables log5(62.5) - log5(12 1 2 )

simplify 1√3−2 1 √ 3 − 2 - 1√3+2

change 7110 to base 8

Integrate 1−xx3 with respect to x

Evaluate 35240.05 3524 0.05 correct to 3 significant figures

Solve for y in the equation 101 x 5(2x - 2) x 4(y - 1) = 1

If 2log3 y + log3 x2 = 4, then y is