Maria is invited to give a presentation about the planet Mercury to the third graders at Franklin Elementary. When
she gives the presentation, she can't get the students to
follow her graph. The graph shows the eccentricity of
Mercury's orbit according to Newtonian physics and
compares it to the uniformity of the planet's orbit
according to Einsteinian physics.
What is the biggest problem with Maria's presentation?
A. The choice of tanis Mercury is inannronriato

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4

the correct answer would b,   to show that she was very influential in the democratic party.