I don't really understand your question , can you rephrase it ?
Do you mean ?5x7 = 455 ?
because then it would be :
455 divided by 7 which equals 65 :)
Answer:
$966
Step-by-step explanation:
6/7 = 828/x
Write a proportion.
6x = 7(828) Use cross products.
6x = 5796 Multiply.
x = 966 Divide both sides by 6.
Paul's investment was $966.
I think it might be pairs 2 & 3
Answer:
CA = 32
Step-by-step explanation:
By intersecting chords theorem:

CA = 14 + ( 3 + 3x)
CA = 14 + ( 3 + 3*5)
CA = 14 + ( 3 + 15)
CA = 14 + 18
CA = 32