Find the measure of arc RS​

Chandler was a caretaker at the state zoo. he noticed that the number of animals adopted by the zoo increased at a constant rate every year since 2010. which of the following graphs shows the slowest rate at which the animals in the zoo were adopted?

Which table represents a linear function? i'll give brainliest to first answer ^'^

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.