Answer:
No, the pair is not a solution to the equation.
Step-by-step explanation:
For the pair to be a solution to the equation, x = -2 must lead to y = 8, o =r vice versa. This leads to being able to solve it two ways either through x or through y.
I'll solve it through x:
y = -2x - 1
with x = -2
y = -2 * - 2 - 1
y = 4 - 1
y = 3
Since y = 3, when x = -2 the pair (-2,8) is not a pair to the solution of the equation.
PS: You can double check by solving through y and you'll find x = -4.5
<h2>
Answer:</h2>
<u>24.</u>
<h2>
Step-by-step explanation:</h2>
<h3>1. Write the expression.</h3>

<h3>2. Substitute the variables by the respective given value using <u>parenthesis</u>.</h3>

<h3>3. Simplify the expression by applying the hierarchy or mathematical operations.</h3>
<em>a) Solve parenthesis.</em>

<em>b) Solve the exponent.</em>

<em>c) Divide.</em>

<em>d) Subtract.</em>

Step-by-step explanation:
<u>The inequality represents:</u>
h is less than or equal to 46.
<u>Values included;</u>
I apologize for the line being uneven.
Here you go mate. Very easy concept to learn :D good luck in your studies