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The ages, in years, of four boys are 10, 12, 14 and 18. What is the average age of the boys?

June 3, 2026Mathematics

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Step-by-step solution

4 steps

Here are the solutions to the problems:

1. Evaluate: $7 - 3(2+4)$ .

Perform the operation inside the parentheses.
$2+4 = 6$
Perform the multiplication.
$3(6) = 18$
Perform the subtraction.
$7 - 18 = -11$
The correct option is A.
$\boxed{\text{A. -11}}$
2. If $p = -2$ and $q = 5$ , find the value of $2p^2 - pq + 3q$ .
Substitute the given values of $p$ and $q$ into the expression.

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