13. if (x, y) is the solution to the system of equa-
tions shown below, what is the value of x + y?
x + 4y = 20
x + 7y=41
a) – 13
b) -1
c) 1
d) 15

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station.he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52