Answer:
? = −0.6
Step-by-step explanation:
If you preform the opposite operation, you get what ? equals.
-2.1 + 1.50 = -0.6
(28 * x) -42 = 154
28x - 42 = 154
28x = 196
the unknown number is 7
This is the leineae making it a because it’s cubic
Unless there is no promotion like "buy 2 get 1 free" or "buy 2 get 1 for 50%" etc. then the cost of ordering multiple items is always proportional. Let's say something costs $5. Two items will cost $10, three $15, four $20 etc. These numbers are all proportional. Hopefully that's what you meant :)
(3+3i) - (13+15i)
=3+3i-13-15i
=-10-12i
