Answer:
x = 18
Step-by-step explanation:
(whole secant) x (external part) = (whole secant) x (external part)
(6+x)6 = (8+10)* 8
6*(6+x) = 8(18)
Divide each side by 6
6+x = 8(18)/6
6+x = 8*3
6+x = 24
Subtract 6 from each side
6+x-6 =24-6
D)$660
Add all of them up and you get $658.29 the number in the tens place is 5 and the number on the right is 8 so you round up.
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i hope i have been useful buddy.
good luck ♥️♥️♥️♥️♥️.
