Answer:
z = 2
Step-by-step explanation:
The proportionality can be written as ...
x = ky/z
Then ...
z = ky/x
If x is constant, z is directly proportional to y. When y is reduced by a factor of 2 from 6 to 3, then z will be reduced by a factor of 2 from 4 to 2.
z = 2 . . . . when y=3 and x=3
A
Its A the other ones don't make sense
Answer: He bought 7 pens.
21/3 = 7
20 + (-45) = -25
1900×9÷100
19×9=171
ok if you any doubt say me
Your answer is 6 you see one number can be multiplyed or divided by another number many times.
