The sum of 6c- 5c and the opposite of 6c

Step-by-step explanation:

To find: The sum of and opposite of

Opposite of means taking the opposite sign.

is positive. So, opposite sign is .

Therefore, the addition is given as:

Opening the parenthesis, we get:

Now, as per PEDMAS rule, we subtract , we get

Now, we are left with

Subtracting a bigger number from a smaller number will give a negative answer.

So,

Therefore, the final answer is

the first one, all those points on the line just make a strait line.

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours