Answer:
15
Step-by-step explanation:
cost of 20 mobile set=300
cost of 1 mobile set
<em>=</em><em>cost </em><em>of </em><em>mobile </em><em>set/</em><em>number </em><em>of </em><em>mobile </em><em>set</em>
<em>=</em><em>3</em><em>0</em><em>0</em><em>/</em><em>2</em><em>0</em>
<em>=</em><em>1</em><em>5</em>
Y+7 = 2/5 (x+5)
y+7 = 2/5x + 2
y = 2/5x - 5
Slope = -2/1
work is provided in the image attached.
Answer:
the answer is study (thank me later)
Step-by-step explanation:
Answer:

Step-by-step explanation:
first find the slope using the above points then use the slope formula to calculate the slope

substitute ⅔ for m and one of the above points into the y-intercept form of the equation for a line and solve for b

substitute the slope and the value for b into the equation to get the answer
