4. If 8 out of 25 snacks are healthy, how many healthy snacks will there be per 100 snacks total?​

32 of them would be unhealthy. this is because 25 times 4 equils 100, so 8 times 4 equils 32.

32 healthy snacks

Step-by-step explanation:

-set up an equivalent fraction to keep the same proportion

8 healthy / 25 snacks = ? healthy / 100 snacks

-solve for ? healthy

8/25 = ?/100, cross multiply

25 * ? = 8*100 , divide both sides by 25

? = 800/25 = 32 healthy snacks

* you can also think that 100 is 25 four times,

so the healthy snacks are 8*4 =32

b.-4 units

all you   do is count how many times you move