need assistance with solver. professor advising I have correct answers but it is not showing solver. I don't understand. see professors message:

Isee you are using correct format and answered placed for 3-18 & 3-22. 3-12 not completed.

Also, non of the problems submitted not using Solver to place answers shown. can you help please for module 3 questions. thank you

Small Large Bumper Mailings Ads Number of units 0.00 0.00 0.00 0.00 1508.33 Votes 45250 Constraints: Max small Max large Max bumper Max mailings Max radio Total budget $25 $60 $30 $81 $1,000 Min small Min large Min bumper Min mailings Min radio 0.00 0.00 = 10 0.00 >= 40 0.00 >= 485 0.00 >= 10 0.00 >= 30 LHS Sign RHS Problem 3-18 (a) Start at Start at Start at Start at Start at Start at 2am 6am 10am 2pm 6pm 10pm Number of attendants 14.0 13.0 0.0 23.0 6.0 16.0 Objective 1 1 1 1 1 1 Constraints 6am-10am needs 1 1 10am-2pm needs 1 1 2pm-6pm needs 1 1 6pm-10pm needs 1 1 10pm-2am needs 1 1 2am-6am needs 1 1 72.0 27.0 >= 27 13.0 >= 12 23.0 >= 23 29.0 >= 29 22.0 >= 23 30.0 >= 8 LHS Sign RHS Start at Start at Start at Start at Start at Start at 2am 6am 10am 2pm 6pm 10pm Number of attendants 0.0 27.0 9.0 14.0 15.0 8.0 Wages $152 $136 $128 $136 $152 $160 $10,288 Constraints Total available 0.0 = 73 6am-10am needs 0.0 >= 27 10am-2pm needs 0.0 >= 12 2pm-6pm needs 0.0 >= 23 6pm-10pm needs 0.0 >= 29 10pm-2am needs 0.0 >= 23 2am-6am needs 0.0 >= 8 LHS Sign RHS NOTE: You will need to enter remaining fields and complete Solver to get solution Weight in tons Value Constraints: Weight limit (tons) Volume limit (Cu. m.) Cargo A limit (tons) Cargo B limit (tons) Cargo C limit (tons) Cargo D limit (tons) Cargo E limit (tons) Min cargo A (tons) Min cargo B (tons) Min cargo C (tons) Min cargo D (tons) Min cargo E (tons) Cargo A 194 Cargo B 556 Cargo C 380 Cargo D 460 Cargo E 720 1 26 1 54 1 28 1 45 1 37 2,310.00 = 194 556.00 >= 170 380.00 >= 380 460.00 >= 460 720.00 >= 720 LHS Sign RHS