please explain step by step all attached questions, thank you.

= MAC2233 006 19075 > Assignments > HW 2.1 Fall 2021 - 1 Full Term HW 2.1 Home Due Tuesday by 11:59pm Points 15 Submitting an external tool Syllabus Modules HW 2. 1 Save progress Done $ VO : Announcements Score: 8.33/15 10/15 answered Grades . Question 10 > 0/1 pt 0 4 # 97 0 Details Zoom Evaluate the limit: 2x lim 1-+0 16x + 4 - 2 Add Work Submit Question= MAC2233 006 19075 > Assignments > HW 2.1 Fall 2021 - 1 Full Term HW 2.1 Home Due Tuesday by 11:59pm Points 15 Submitting an external tool Syllabus Modules HW 2.1 Save progress Done Announcements Score: 8.33/15 10/15 answered Grades . Question 12 Assignments > HW 2.1 Fall 2021 - 1 Full Term HW 2.1 Home Due Tuesday by 11:59pm Points 15 Submitting an external tool Syllabus Modules HW 2.1 Save progress Done Announcements Score: 8.33/15 10/15 answered Grades . Question 13 > 0/1 pt 9 4 # 97 0 Details Zoom Evaluate the limit lim 1 Add Work Submit QuestionMAC2233 006 19075 > Assignments > HW 2.1 Fall 2021 - 1 Full Term HW 2.1 Home Due Tuesday by 11:59pm Points 15 Submitting an external tool Syllabus Modules HW 2.1 Save progress Done VO CO ... Announcements Score: 8.33/15 10/15 answered Grades . Question 14 0/1 pt 0 4 # 98 0 Details Zoom -4-x+3 if a - 5 Calculate the following limits. Enter "DNE" if the limit does not exist. lim f(x) = x - -5 lim f(x) = I- -5+ lim f(a) = c- -5 Add Work Submit QuestionFall 2021 - 1 Full Term HW 2.1 Home Due Tuesday by 11:59pm Points 15 Submitting an external tool Syllabus Modules HW 2.1 Save progress Done VO CO : Announcements Score: 8.33/15 10/15 answered Grades . Question 3 > 0/1 pt 9 4 98 0 Details Zoom Evaluate the limit: 4x - 28 lim 1 -+ 7 2 2 4x - 21 Question Help: Video Add Work Submit