Answer:
Mostly correct
For Q3, you are doing great, you remembered that negative numbers can happen if the exponent is an odd number.
For Q4, I think you were confused with the fractions,
4(i)

4(ii) is also wrong but I'll let you try to fix it yourself following what I given you for 4(i). You should get 1/64
Hope this helps!
Answer:
0.4875 cents per ounce
Step-by-step explanation:
16 ounces per pound
1.75 lbs x 16 = 28 ounces
$13.65/28 ounces = .4875 cents/ounce
Check: 0.4875 cents x 28 ounces = $13.65
Answer:
a' > a
Step-by-step explanation:

A larger value for a will stretch the exponential in the y direction. A larger value for b will stretch it in the x direction.
Rhombus or diamond, but not a square or rectangle