0≤h(t)≤144, which means that the height of the object can be between 0 and 144 feet, including those limits.
The value of the given expression (3m - n)² + 4m when m = 63 and n = 45 is equal to 20,916.
<h3>What is an expression?</h3>
An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.
<u>Given the following variables:</u>
Substituting the given variables into the given expression, we have;
Expression = (3m - n)² + 4m.
Expression = (3(63) - 45)² + 4(45).
Expression = (189 - 45)² + 180
Expression = 144² + 180
Expression = 20,736 + 180
Expression = 20,916.
Read more on expressions here: brainly.com/question/28260012
#SPJ1
Complete Question:
Evaluate the expression when m = 63 and n = 45. (3m - n)² + 4m.
Initial fee- $30
$5 per hour
=$50
$5* 4(hours)=$20
$30+$20=$50
