Is this right? Please help me.

The scatterplot represents the total fee for hours renting a bike. the line of best fit for the data is y = 6.855x + 10.215. which table shows the correct residual values for the data set?

If y varies as x, and y=8 as x=4 what will be the value of y if x=2

The amount charged by colleges and vocational schools for courses is referred to as tuition fee interest none of the above asap