Answer:
-8.3
Step-by-step explanation:
Write a and b in a column and then combine these numbers:
2.5
-10.8
-------=
1. Add 4 to both sides of the equation.
2. Multiply 6/5.
x=
1. 1/2
2. .5
3. 50%
2 of the types of cards out of 4 is 2/4 which is half
