Answer: The first one. 2 to the 20th power over 3 to the 8th power
Step-by-step explanation:
Answer:
3: 
4: 
Step-by-step explanation:
Question 3 can be re-written as:

which equals:

Question 4 can be re-written as:

Doing the first 2 brackets gives us:

Expanding these two:

Simplifying it:

Answer:
A. x - 38.45 = 17.71
Step-by-step explanation:
The price of the shirt subtracted off the amount of money she had before would give 17.71
Answer:
97km/h to 1dp
Step-by-step explanation:
47mins is 0.783 of an hour
76km/0.783 = 97.0212km/h
A - actuary...........that is the answer