I think it's equal
____________
The answer is A.
D= 6<=x<=11
X^2 + 9 + 7 = 20
X^2 +16 = 20
X^2 = 20-16
X^2 = 4
Root 4 = 2
X=2
Answer:
-3
Step-by-step explanation:
3 + (-3) = 0
The lowest common multiple of 2 and 7 is 14, so 14 days will pass before he does both chores again.
