Which of the following equations has the solution set {0}?

-14m - 7m + 1 = -7m + 1
-14m + 7m + 1 = -7m + 2
14m - 7m - 1 = -7m + 1

It would be the first one because the second one has a 2 and we know that the 2 does not cancel out the one. This leaving us with 2 answers left. The 3rd one is not the correct one, this is because when you subtract the 14m - 7m you get 7m - 1, then you would subtract the 7m and -7m because the ones canceled each other out. This leading us to get -14m and not a 0. This leaving the last one, which is the first one. This having to be the first one is correct.

(I did this on a test and got it right) (It's the first one)

Step-by-step explanation:

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%