I believe it is 816... But I'm not exactly quite sure
D - 21 ≥ 53
solve just like normally would using algebra.
add 21 to both sides
d ≥ 74
You can't deduce the length of a side from the perimeters of a rectangle.
Say that 
and 
are, respectively, the short and long side of the rectangle.
So, we know that
But we can't solve exactly for nor for , unless more information is given.
Answer:
x = -3 when f(x) = -5
f(0) = 3
Step-by-step explanation:
When f(x) = -5, that means they have told you the y value. When y = -5, x = -3.
If the number is in the parentheses of the function, they are giving you the x value. When x = 0, y = 3
Answer:
The answer is 0
Step-by-step explanation:
Technically you didn't term x, so it would be a constant with respect to x
