Answer:
14
Step-by-step explanation:
Simply by distributing 5y^4 to the first two terms and then distribute 2y^5 to the same two terms and then add the like terms.
A= 5
B= 3
A= 5 +5+5+5= 20
B= 3 (length) x 3 (width)
40(0.08) = 3.2
3.2+40
Answer: 43.20
3.9
x/15 = 23.4/90
15 X 23.4= 351
351/90=3.9