Hoa sells vacuum cleaners. she earns $500 weekly salary in addition to $40 for each vacuum cleaner sold. write a linear equation to represent her weekly pay based on the number of vacuum cleaners she sells.

question 15 options:

y=40x+500

y=500x+40

x=40y+500

x=500y+40

idk

step-by-step explanation: i just don't

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!