Respuesta :

AnastasiaTJ

Answer:

1.) -3

2.) 20

3.) is either - 25 or just 25 (depends if you have parentheses around the -5)

Step-by-step explanation:

2.) 5*2 is 10

2*-5 is -10

10-(-10) =20

3.) parentheses: (-5)^2 = 25

w/o parentheses: -5^2 = -25