George helped his dad plant trees. They plant 18 to a row and 3 rows an hour. At that rate, how many would they plant in an 8 hour day?

432

Step-by-step explanation:

Okay so george and his dad plant 18 to a row and 3 rows an hour. So thats 3 rows of 18 an hour.

So first: Multiply 18 x 3 to find out how many trees they plant each hour.

18 x 3 = 54: So they plant a total of 54 plants each hour.

Next: to find out how many they planted in 8 hours multiply 54 plants x 8 hours

54 x 8 = 432 trees per 8 hours

Hope it helps :P

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

i got 86 for this

hope this !

if you need an explanation just ask