Each side is about 290mm long
Answer:
Step-by-step explanation:
So now its

but you want it in y=mx+b so
add x to both sides so that you have y on its own
so now it's
Answer:
125 cards
Step-by-step explanation:
20% = 0.2= 1/5
So because 25 is 1/5 0f the total number cards multiply 25 by 4 to get the other 80% and add the first 25 cards to that number.
(25 x 4) + 25= ?
100 + 25 = 125
therefore 125 cards were sold.
This answer can easily be plugged into a calculator. =)
3 + 1234 = 1237
Hope that helps! -UnicornFudge aka Nadia