Find the Antilog of 547.840​

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Using elimination, what is -4x+2y=-12 4x+8y=-24