Answer:
the answer is 5
Step-by-step explanation:
Answer:
Intersect
Step-by-step explanation:
A linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees
X = adults
Y = child
X+y=168
X=168-y
$10x + $7y = $1446
10(168-y) + 7y = 1446
1680 - 10y + 7y = 1446
-3 y = -234
Y = 78
X = 168-78
X = 90
$10*90 + $7*78 =
$900 + $546 = $1446
240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to

after 240 days.
The answer is 61. hope that help.