I think it is y=35 because u multiply both sides by 5 move the variable right then the final solution is
substitute 
in the equation:
Answer:
$5.25.
Step-by-step explanation:
That is $7.50 - 30% of 7.50
= 7.50 - 0.30 * 7.50
= $5.25.
Answer:
x = 10
Step-by-step explanation:
l n 20 + l n 5 = 2 l n x
ln (20×5) = ln x²
ln(100) = lnx²
100 = x²
x = +/- 10
Since logs of negative numebrs don't exist, we reject -10
