The identity element with respect to the multiplication shown in the table above is

Triangle SPT is the solution of the linear inequalities

Divide a^3x – 26a^2x + 156a^x – 216 by a^2x – 24a^x + 108

Evaluate $\frac{{{(0.14)}^{2}}\times (0.275)}{7(0.02)}$ correct to 3 decimal places. 

Find the principal which amount to N5,500 at simple interest in 5 years at 2% per annum.

if $\tfrac{y}{2}=x$, evaluate $\left( \tfrac{{{x}^{3}}}{{{y}^{3}}}+\tfrac{1}{2} \right)\times \left( \tfrac{1}{2}-\tfrac{{{x}^{2}}}{{{y}^{2}}} \right)$

A car dealer bought a second – hand car for N250,000 and spent N70,000 refurbishing it. He then sold the car for N400,000. What is the percentage gain?

Given that $p=1+\sqrt{2}\text{ and }q=1-\sqrt{2}$ evaluate $\frac{{{p}^{2}}-{{q}^{2}}}{2pq}$

Simplify ${{\left( \sqrt[3]{64{{a}^{3}}} \right)}^{-1}}$

Evaluate 21.05347 – 1.6324 × 0.43 to 3 decimal places