Evaluate the expression $\frac{a}{11}+\frac{b}{11}$a11+b11 when $a=5$a=5 and $b=2$b=2.

Evaluate $\frac{5}{9}\left(F-32\right)$59(F−32) when $F=113$F=113.

Consider the expression $5\left(a+6\right)$5(a+6).

Evaluate $s\left(12-t\right)$s(12−t) when $s=-3$s=−3 and $t=10$t=10.

Form and solve linear equations and inequations, quadratic and simple exponential equations, and simultaneous equations with two unknowns

Apply algebraic procedures in solving problems