Answer:
x + y = 11
10x + 5y = 80
Step-by-step explanation:
A. (x+3)(4x+5)
(multiply x with 4x+5 then multiply 3 with 4x+5)
=4x^2+5x+12x+15
=4x^2+17x+15
b,c, and d are similar
Answer:
0 in²
Step-by-step explanation:
Maybe it would help to show some lines or something shape-like.