Question

please solve it please​

Answer 1

Answer:

8.4 is correct answer a i right

Answer 2

Answer is 3 3/5 or 3.6

Step-by-step explanation:

first convert it to mix fraction

6 3/5= 33/5

let the number be x

x+33/5=15

x=15-33/5

x= -18/5

x= 18÷5

x=3 3/5 or 3.6