Answer:
10
Step-by-step explanation:
[tex] - 4 .2 - ( - 2.9) \\ = - 8 - ( - 18) \\ = - 8 + 18 \\ = 10[/tex]
Answer: -1.3
-4.2-(-2.9)
Looking at this equation
Minus × minus = plus
-4.2+2.9
= -1.3