What’s the answer for liner combination to eliminate one of the variables. but which one of theses equations can replace 3x+5y=59

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o

Someone me! will award brainliest if u explain and answer!