Theatre tickets cost $8 each. Write down a formula for the total cost, C, of buying t theatre tickets.

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Write the pair of fractions as a pair of fractions with a common denominator

Equation for the calculation double 2 and then add 5