Room A contains 7 people. Room B contains the number of people in A plus half the number of people in C. Room C contains the same number of people as room A and Room B combined. How many people combined are there in rooms A, B, and C?

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

the reporter's right

step-by-step explanation:

1/4 = .25 / 25%

x + 4/7

step-by-step explanation:

use cymath

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5