7x+2y=5. -x-6y =8 solving linear systems using multiplication and addition show your work

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

How do you summarize data in a two-way frequency table?

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.