BYE IM LEAVING THE APP THANKS TO KATIE REPORTING ME 16 TIMES I HAVE TO LEAVE THE APP

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

Nine more than four times a number is the same as one less than twice the number. find the number?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?