Please help me out I don’t know how to do these I will put you brainlist and likes

Find the GCF set of numbers

28. 12, 20, and 32

29. 15x², 27x^3, and 30x^4

30. 72ab, 90ac, 108abc

Complete the truth table a. t, f, f, t b. t f f f c. f t f t d f t f t

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?