Someone please help me with this it will be much appreciated! And will be marked as brainliest

Nnnnneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?