Someone please helppp

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

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?