Ariana is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Ariana will earn $40 every time one of her songs is played
in a commercial and she will earn $110 every time one of her songs is played in a
movie. Ariana earned a total of $500 in royalties on 9 commercials and movies. Write
a system of equations that could be used to determine the number of commercials
and the number of movies on which Ariana's songs were played. Define the variables
that you use to write the system.

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

can i see the following ?

step-by-step explanation: