Answer:
$7.56
Step-by-step explanation:
They sell it in $2.25 per kg
Hamburger: cost
1 kg : 2.25
3.4 : 7.56
1 x 3.4= 3.4
so, 2.25 x 3.4= 7.56
C: 12/35a^3
2 multiplied by 6 is 12.
5 multiplied by 7 is 35.
a^1+a^2=a^3.
All percents are out of 100 so start with 15/100 and then simplify
3/20
4/10 is 2/5 or 0.4 in decimal form.