Solver for surface area i know the other but this four can someone help out

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.