Equation: (70 + 70*.05) + (580 + 580*.07) + (620 + 620*.10) = Total Spent
Solving for this gets you $1320.30.
I think i know the answer to that question. just wait for a sec.
Answer:
I belive it should be # 3 i might be wrong thow.
Step-by-step explanation:
The last choice is right sure because this is a perfect square trinomial
(4xy -3z)^2 = 16x^2y^2 -24xyz +9z^2
hope this will help you