Answer:
12:21
Step-by-step explanation:
4 + 7 = 11
33/11 = 3
3x4=12 & 3x7=21
Therefore, ratio is, 12:21
It’s A or D but I have a strong feelin it’s A
1.a
2.d
3. they all are the same type of number, real rationals
4. No irrational number is a rational number
5.No irrational number is a integer
This is the answer 7 x -3
7 x -3 = -21
If we factorize the expression

We will get

Hope I helped!