Answer:
35% of 457 is 159.95 - there cant be 0.95 of a teenager
Around a third of those surveyed smoke cigarettes
Step-by-step explanation:
X-4y=28
8x+4y=8
---------------
9x=36→x=4
4-4y=28→y=6
—-----------------------------------------------------------
y-5=x
4(y-5)-y=4
4y-20-y=4
3y=24
y=8
x8-5=3
