Answer:
3
Step-by-step explanation:
a positive 3 taken away from a negative 10 leaves you with less negative but still in the negative which means you get -7 so 3 is the blank

Explanation

Step 1
multiplicate by the conjugate

notice that


I hope this helsp you
he ate 40 percent of the cookies
Answer: 4/15
Step-by-step explanation: