Relationship b has a greater rate than relationship a. the graph represents relationship a. which equations could represent relationship b?

choose all answers that are correct.

y = 1/2 x

y=2.2x

7=1.4x

y=3x

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Which expression is equal to (f+g)(x)?