Answer:
I believe it is 5.25
Step-by-step explanation:
if you multiply 3 and 7 then divide by 4 you will get 1 fourth of 21 which is 5.25 !!
Answer:

Step-by-step explanation:
Let
c-------> the number of cookies in each batch
we know that
To find the total number of cookies, multiply the number of batches by the number of cookies in each batch
so
------> equation that represent the total number of cookies
If Anna ate
cookies
then
The expression to know how many cookies Anna has left is equal to

Answer: 4
Step-by-step explanation:
1 + 3 = 4. this has gotta be one of the hardest questions i've had to answer on this site
Answer:
-90
Step-by-step explanation:
10+5×5×(-2)
10+25×(-2)
10+(-100)
10-100
-90
Answer:
- The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
- Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
- the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3
Step-by-step explanation:

- HOPE THIS HELPS!