Answer:
The answer to your question is a = 1.1; b = 24
Step-by-step explanation:
Data
Earth's mass = 5.97 x 10²⁴ kg
Venus' mass = 4.87 x 10²⁴ kg
Process
1.- Subtract the Venus' mass to the earth's mass.
5.97
- 4.87
1.1
2.- Write the result in scientific notation
1.1 x 10²⁴ kg
3.- Result
a = 1.1
b = 24