Answer:

Step-by-step explanation:

I am assuming the -3 is an exponent.
y⁻³ and 5⁻³
If the exponent is a negative number, it simply means that the number is a denominator with 1 as the numerator.
y⁻³ is 1/y³
5⁻³ is 1/5³ = 1/125
The number is still raised to its exponential power but its placement is different.
5³ would be 125 or 125/1. It would be the numerator with 1 as the denominator.
8 is the answer because when you add 11+4 you get 16 and then you would subtract that from 24 which would give you 8. Idk where you got "PA" ?
2.44* 1.83 =4.4652 meters square
7. -48.9582
8. -11.9145
9. 4.15
10. 22.28125
11. 20.625
12. 0.372
13 1.666
14. 6.6664
I hope this helps.