Question

Can someone explain or help me with these problems
Please and thank you

Answer 1

1st picture (tri) = 16y+8

2nd picture (tri) = 12x-9

3rd picture (sq) = 21x+35

Explanation:

Triangle area = (Base x Height) divided by 2

#1.) 16(2y+1) = 32y + 16 (32y+16)/2 = 16y+8

If you need more explination ask me :)