Marked up by 135% means
new price=original price+(original price times markup) =125+(125 times 1.35)=293.75
tax
293.75 times 0.075=22.03125
293.75-22.03125=271.718 so aprox $271.72
selling price would be $271.72
he increase from 125cm to 135cm
first step :

second step :
percents he change is

M—4, 4 cards less than the original M number of cards.
It is 4 because the diameter is twice longer than the radius!
Answer:
r <5
Step-by-step explanation:
r-4<1
Add 4 to each side
r-4+4<1+4
r <5