Answer: 60 of the patients are boys.
Step-by-step explanation: According to what is described, 5 in 8 patients are girls, then: 8 - 5 = 3, i.e., 3 in 8 are boys.
Mathematically the proportionality is 
If 160 patients have appointments per month and
are boys:
160.
= 60
Per month, 60 boys have appointments at the medical office.
Answer:
17
Step-by-step explanation:
The two integers could be -1 and 18.
18 + -1 = 17
Any other combination of integers that have a product of -18 would have a smaller sum.
Answer:

Step-by-step explanation:
General equations are in the form 
So you can add 6 to both sides to make:

D because 5 times 2 is 10 and - cuts off - so -3 times -3 would be 9 so 10+9 is 19 :)
Answer : the answer is 5 people per T-shirt
Step-by-step explanation: because its 5 people per 1 T-shirt