Question

I need help with #2 please I don’t understand

Answer 1

#3 you got all wrong
You need to using the distribute property to multiply
a) 7(2x+3) = 14x + 21
b) 5(x - 3) = 5x - 15
c) 3(3x + y) = 9x + 3y
d) 4(2x + 3y) = 8x + 12y

Answer 2

1. Square 
2. Circle
3. Triangle (inside of a square) 
4. Pentagon
5. Rectangle

Hope this helps :)