Which of these values would make $\frac{3p-1}{{{p}^{2}}-p}$ undefined

Evaluate $\frac{0.42\div 2.5}{0.5\times 2.05}$ leaving the answer in standard form

Solve $\frac{y+1}{2}-\frac{2y-1}{3}=4$

Express 0.612 in the form $\tfrac{x}{y}$, where x and y are integers and y ≠0 

Simplify$\frac{2-18{{m}^{2}}}{1+3m}$

Simplify $2\tfrac{1}{4}\times 3\tfrac{1}{2}\div 4\tfrac{3}{8}$

Solve the equation $\frac{1}{5x}+\frac{1}{x}=3$

If $x=\frac{2}{3}$ and y = – 6, evaluate $xy-\frac{y}{x}$

Evaluate $\frac{3\tfrac{1}{4}\times 1\tfrac{3}{5}}{11\tfrac{1}{3}-5\tfrac{1}{3}}$

Simplify $\frac{2}{3xy}-\frac{3}{4yz}$