notebooks cost $1.20 each this weekend they will be on sale for $0.80 what percentage off of the orignal sale

40 % off

Step-by-step explanation:

First you are going to 1.30, then divided that by 0.80

33%

Step-by-step explanation:In the question it is already given that the actual cost of each notebook is $1.20. For the weekend, the notebooks would sold at a discounted rate of $0.80

The amount of discount during the weekend = (1.20 - 0.80) dollars

                                                                      = 0.40 dollars

So the amount of discount given during the weekend is $0.40

Now we need to find the percentage of discount given during the weekend.

Then

Percentage of discount during the weekend = (0.40/1.20) * 100

                                                                      = 0.33 * 100

                                                                      = 33

Then the percentage of discount given is 33%.

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles