Assume Alan's brother has x coins before Alan gave him 48 coins
x+48=1.4x (increased by 40%)
0.4x=48
x=120
120+140=260
answer is 260 coins
Answer:
it might be c I'm not to sure tho
30,32,34,36,38,40,42,44,46,48,50
The simplest way to do this is to set up equivalent fractions. So, you'd do:

=

and then solve for x.
x=52
I got B for 3
Because
3x<-2x+15
5x<15
X<3