Express the product 0.21 and 0.34 in standard form

Rationalize $\frac{2\sqrt{3}+\sqrt{5}}{\sqrt{5}-\sqrt{3}}$

Given that log 2 =0.3010, log7 = 0.8451, Evaluate log112

Evaluate ${{\left( \frac{81}{16} \right)}^{-\tfrac{1}{4}}}\times {{2}^{-1}}$

If $p:q=\tfrac{2}{3}:\tfrac{5}{6}$and $q:r=\tfrac{3}{4}:\tfrac{1}{2}$ find $p:q:r$

At what rate will the interest on N400 increase to N24 in 3 years reckoning in simple interest

A student measures a piece of rope and found that it was 1.26m long. If the actual length of the rope was 1.25m, what was the percentage error in the measurement?

Simplify $\left( \tfrac{3}{4}\text{ of }\tfrac{4}{9}\div 9\tfrac{1}{2} \right)\div 1\tfrac{5}{19}$

Find r, if 6r7₈ = 511₉

Which of the mathematics Question paper type is given to you?