Answer:

Step-by-step explanation:
Slope-intercept form: y = mx + b
Slope formula: 
Given points: (3, -7), (7, 2)
(3, -7) = (x1, y1)
(7, 2) = (x2, y2)
To write the equation in slope-intercept form, we need to find the slope(m) and the y-intercept(b) of the equation.
First, let's find the slope. To do this, input the given points into the slope formula:

Simplify:
2 - (-7) = 2 + 7 = 9
7 - 3 = 4

The slope is
.
To find the y-intercept, input the slope and one of the given points(in this example I'll use point (7, 2)) into the equation and solve for b:



The y-intercept is
.
Now that we know the slope and the y-intercept, we can write the equation:

Answer:
2x + 3x + 5= 10x
Step-by-step explanation:
Answer:
4(10)-5=35
Step-by-step explanation:
4(10)=40-5=35
4(10) is the same as 4x10
So think about it like 4x10-5
I hope this helps ;}
Answer:
A
Step-by-step explanation:
Given
21 ≤ - 3(x - 4) < 30 ← divide all 3 intervals by - 3
Remembering to reverse the direction of the signs as a result of dividing by a negative quantity
- 7 ≥ x - 4 > - 10 ← add 4 to each interval
- 3 ≥ x > - 6, that is
- 6 < x ≤ - 3 → A