Brainiest to whenever correct!

Step-by-step explanation:

add them all up to equal it to 540

72 + 89 + 99 + 4x + 3x = 540

260 + 7x = 540

7x = 280

x = 40

x = 40

Step-by-step explanation:

to find how many degrees a polygon has in total you can use the formula (s - 2) * 180 in which s means sides

there are 5 angles in this polygon so we can do (5 - 2) * 180

3 * 180 is 540 so this shape has 540 degrees in total

so when adding them together they should equal 540

72 + 3x + 4x + 89 + 99 = 540

then you combine like terms

7x + 260 = 540

and subtract

7x = 280

last divide

x = 40

that is your answer

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )