Answer:
The building is 36 feet tall.
Step-by-step explanation:
x/6 = 24/4
4x=144
4x/4 = 144/4
x=36
Rewrite the equation as;
-0.3(7n - 31.2) = 0.456
Divide each term by 0.3 and simplify;
-7n + 31.2 = 1.52
Move all terms not containing n to the right side of the equation;
-7n = -29.68
Divide each term by -7 and simplify;
<u>n = 4.24 </u>
Your answer for #5 is D,you answer for #6 is A,and you answer for #7 is C