Which algebraic expression is represented by the model? pls

What is the celsius temperature that is equal to 94 degrees fahrenheit using the formula f=9/5 c+32

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Which of the following is the result of expanding the series