Respuesta :

Answer:

10

Step-by-step explanation:

[tex] - 4 .2 - ( - 2.9) \\ = - 8 - ( - 18) \\ = - 8 + 18 \\ = 10[/tex]

Answer: -1.3

Step-by-step explanation:

-4.2-(-2.9)

Looking at this equation

Minus × minus = plus

-4.2+2.9

= -1.3