Answer:
x=9
Step-by-step explanation:
4x+6+7x+15=120 combine like terms it becomes 11x+21 =120 take away 21 from 120 , leaves you with 11x=99 divide by 11 to get x alone leaves you with x=9 :)
$64 is 80% of $80. To find how many percent of $80 is $64. $64/$80 = 0.8 or 80%
To find how many percent of decrease, just subtract 80-64=16; $16/$80= 0.2 or 20%
