X must be 4.
I uploaded the photo as an answer
Answer:
x + 10
Step-by-step explanation:
X is used to represent a variable or any number. This letter can be changed if you'd like
Answer:
Step-by-step explanation:
first you multiply 45 by .40 you multiply by .40 because that is the percent increase.
45*.40=18
then you just add the 18 to 45 which get you 63.
answer:40%
You would set it up like this: 150x + 280 = 255x The you just solve.
