
<em><u>Solution:</u></em>
<em><u>Given that the expression is:</u></em>

We have to select the like terms
"Like terms" means that terms that has same variables with same exponent and same ( or different ) coefficients
In the given expression, y is a variable
Two terms has y as variable : 
Here variable "y" is same in both terms and coefficients are different
"x" is also a variable in given expression. But there are no other terms with "x" as variable
So they form a like terms

Thus the like terms are : 
The image of the straight lines is missing so i have attached it.
Answer:
x = 20°
y = 120°
Step-by-step explanation:
From the image attached, we can say that;
3x + (7x - 20) = 180
This is because sum of angles on a straight line is 180°
Thus;
3x + 7x - 20 = 180
10x = 180 + 20
10x = 200
x = 200/10
x = 20°
Also,3x + y = 180
Because sum of angles on a straight line is 180°. Thus;
3(20) + y = 180
60 + y = 180
y = 180 - 60
y = 120°
Answer:
The correct option is C, i.e., .
Explanation:
It is given that the total number of students in cafeteria should be less than 264. The administrators want there to be 13 less rows than the number of desks in each row.
Let the number of desks in each row be d.
Since administrators want there to be 13 less rows than the number of desks in each row. So the number of row is d-13.
In one row the number of desks is d. So in (13-d) rows the number of number of desks is d(d-13).
Since the total number of students in cafeteria should be less than 264. So we get,
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Step-by-step explanation:
<span>-0.38 = -38/100 = -19/50</span>