Respuesta :

wegnerkolmp2741o

Answer:

13

Step-by-step explanation:

b^2+4

Let b = -3

(-3)^2 +4

9+4

13

tom1001cr

Answer:

13

Step-by-step explanation:

When we want to find the value of an expression and we know the unknown values of the variables, we just have to plug them in:

b^2 + 4, and we know b = -3

= (-3)^2 + 4

= 9 + 4

= 13