9a-5x
step by step explanation:
you can only add and subtract numbers that have the same variables.
12a and 3a are related because there variable is both a.
when u subtract 12a-3a you get the answer of 9a using subtraction.
7x and -2x are the second pair of related terms because they also have the same variable (x)
7x-2x is 5x using subtraction.
put the expression together:
9a-5x
hope this helps!
give me brainliest if it did plz
Answer:
Volume = Area by height. V = A X h.
Step-by-step explanation:
i hope it helps
Answer:
Step-by-step explanation:
This equation is in slope intercept form (
). This is called slope intercept form for a reason - 
is always the slope and 
is always the y-intercept.
We can see that the coefficient on the x-term is 
and the constant being added to it is 5.
This means 5 is the y-intercept.
Hope this helped!
Answer:
B) 180 ft. squared
Step-by-step explanation:
Multiply all sides of the figure by 3 because of the scale factor
6 times 12 = 72 (for the rectangular part)
6 times 6/2 = 18 (for the triangular part)
We know that the base and height of the triangle are congruent because of the tic marks
18 + 72 = 90
Multiply by 2 since that is only half of the side of the house
90 times 2 = 180
