I need help really fast and quick

a.

Step-by-step explanation:

47

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

Given information

x = 6

Given expression

4 (2x - 1) + 3

Substitute values into the expression

=4 [2 (6) - 1] + 3

Simplify by multiplication

=4 (12 - 1) + 3

Simplify by subtraction

=4 (11) + 3

Simplify by multiplication

=44 + 3

Simplify by addition

=

Hope this helps!! :)

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