Answer:
Step-by-step explanation:
Using formula 
a= 650
b= 800
and c is the unkown
Answer:
The answer in the procedure
Step-by-step explanation:
Let
x----> the first number
y----> the second number
we know that

so
-----> equation A
----> equation B
substitute equation A in equation B


100% + 15% = 115% -> 1.15 (multiplier)
Jeans before sale = $11.50 * 1.15
=$1322.50
Please make this answer the brainiest.