Which sentence uses dashes correctly?
a.
now we will hike—along the ridge, down the hill, and across the creek.
b.
on the last page of my program is—the lead dancer's autograph.
c.
i want to hear everything, but—oh, someone is knocking on the door.
d.
this sweater—the one that turned up at the bottom of my closet, does not fit me anymore.

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 answer would be, she updates her online profiles regularly and participates in work-related online discussions.