Answer:
108$
Step-by-step explanation:
It neve mentions how much of his farm he uses, but assuming he uses all of it
area=base times height
given
base=4.2
height=3
area=4.2 times 3
area=12.6 square kilometers
answer is 12.6 km²
Answer:
13) 10b^2a^4
14) -5y^3+35y^2-10y