Answer:
a:d=7:9
Step-by-step explanation:
We have a system with 3 equation:

If we multiply all of these equations, then we have:

If we simplify this fraction dividing by 9, then:

Therefore, a:d=7:9
- 50 or any number below -45
Yes 9 percent is bigger than 0.4 beacsue 0.4 as a precentage would be 4 percent
Can you post another picture cant see full question
Answer:
Every number in the pattern is greater than the previous number.