Tyler bank account balance $22.70 is 3/5 of last years balance let n represent last years balance

Which one ? is the answer and how to find this answer

Find the area of the regular hexagon if a side is 20 cm.

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42