which transformation can not be used to prove that abc is congruent to def ?

Simplify the expression 10/11(22z) + (a+5) -1

Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?