Answer:
B
Step-by-step explanation:
B) The price was increased by 40% and then decreased by 15%.
Multiply the first equation by -2 to give
4x - 2y = 6
-x + 2y = 3 Adding:-
3x = 9
x = 3
Plug x = 3 into second equation:-
-3 + 2y = 3
2y = 6
y = 3
Answer is x=3, y = 3
Lateral area of cube= LA= 4s^2
Cylinder= LA = 2 x pi x r x h<span>
Prism= LA = p x h</span><span>
</span>and there are many others..
I’m not sure if the 15 is the question number but if it is the answer is 32. use PEMDAS
