1.50x + 450 = 3x
450 = 3x - 1.50x
450 = 1.50x
450/1.50 = x
300 = x
300 copies must be sold to break even
Answer:
option 3 is the correct.....
Step-by-step explanation:
multiplying all the algebraic expressions
volume of cuboid = 3x (x+3)(x+1)
= 3x³ + 12x² + 9x
Step-by-step explanation:
<u>1</u><u> </u>*9^2 + 4
3
<u>1</u><u> </u>* 81 + 4
3
<u>1</u><u> </u>* 85
3
<u>85</u>
3
=28