N+(13−n)÷5 for n=3 ; =

2. 3x+x÷3 for x=12
; =

3. 2xy +x2, when x=3, y=5
; =

4. 1+3(m2−20) when m=5
; =

5. 3x2, when x=4
; =

6. (3x)2, when x=4
; =

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

idk

step-by-step explanation:

your answer is  

d.

196.5 m2

step-by-step explanation: