Answer:
1.1000
2.3/4
3.f(x)=1000(1/4)^X
Step-by-step explanation:
Answer:
3/2 mph
Step-by-step explanation:
= 
cross-multiply: 8r = 12
r = 12/8 or 1.5 mph
Because 42 is a multiple of 2
Answer:

Step-by-step explanation:
You could either do what I did in the above answer, or you could do this:

It does not matter how you write it, as long as you understand the concept!
I am joyous to assist you anytime.
Answer:
15
Step-by-step explanation:
For each 11 students, 5 are wearing sneakers, and 6 are wearing boots.
If you have 33 students, then you multiply by 3 to find that 15 are wearing sneakers, and 18 are wearing boots.