Answer:
yes
Step-by-step explanation:
because it sells the best price
Answer:
4:50
Step-by-step explanation:
Answer:
Step-by-step explanation:
This is the diffiarence of two perfect squares. this should be memorised, but if not here it is
a^2-b^2=(a-b)(a+b)
so 16^2-81=16^2-9^2
so the answer is (16-9)(16+9)