Answer:
no
Step-by-step explanation:
to be proportional, every step of 1 in the upper row, must equal an equal step in the lower row.
from 1 to 2: +15
from 2 to 3: +18
not the same so not proportional
Equivalent expressions are expressions with the same value.
The equivalent expression of
is 
Given that:

Open brackets

Collect like terms


Hence, the equivalent of
is 
Read more about equivalent expressions at:
brainly.com/question/18257981
Answer:
t ≥ 108750
Step-by-step explanation:
subtract 15000 from 450000 to get 435000
divide 435000 by 4 to get the number of t shirts needed
Answer:
C
Step-by-step explanation: