Answer:
$4, 15 x 2=30
2 x 2=4
4 dollars
Step-by-step explanation:
We can write a ratio to solve
15 stickers 30 stickers
----------------- = -------------
2 dollars x stickers
Using cross products
15x = 2*30
15x = 60
Divide by 15
15x/15 = 60/15
x = 4
21
7
9/m+4
9/3+4 (m=3)
3+4
-0.2