**Answer:**

He got an 80 percent.

**Step-by-step explanation:**

60 over 1 would be 60.

1/4 is already to its lowest.

If you want percents, decimals, ratios.

20%

.20

1:4

**Answer:**

8

**Step-by-step explanation:**

if we take the 2 that is in the R.H.S and put it in L.H.S

it becomes 16÷2=8

1. Let x be the original amount of baseball cards,

2. half of x was lost so x divided by 2.

3. you buy 18 cards to replace some that were lost

4. You can find the awnser by subtracting 18 from 30, which is 12.

5. Now lets remember that half of your cards were lost. meaning that 12 is only half of what you started with.

6. 12 times 2 would be 24.

7. The Awnser is 24

8. To check your work, you can say x=24, 24 divided by 2 is 12, and 12 plus 18 is 30.

She would atleast have 30 friends