2 is not a composite number as it can't be divided rather than 1 or other number.
hope it helps!
Yep! They are all right! Great job, could write a bit better.... sorry
2(4z-9-11)=166-46
8z-18-22=120
8z-40=120
Add 40 from both side
8z-40+40=120+40
8z=160
Divided 8 from both side
8z/8=160/8
z=20. Hope it help!
Answer: 0.796 meters
Step-by-step explanation:
Circumference of circle =
, where r=radius
Here, Circumference of loop = 2.5 meters
i.e. 


Diameter = 2r = 2(0.398) = 0.796 meters
Hence, The diameter of Taiga's exercise hoop = 0.796 meters
First write out your original equation.

Then use the law of exponents(power of a power) to simplify.

(Multiply the numerator and denominator exponents by the outside power.)
The answer is 4 to the 21st over 5 to the 6th.