Answer:
? = −0.6
Step-by-step explanation:
If you preform the opposite operation, you get what ? equals.
-2.1 + 1.50 = -0.6

First of all, we know that
because of its vertical angle.
is also equal to
because it's an interior angle.

The answers is 11x+2 I’m pretty sure. I can’t tell if your x3 was an exponent or multiplying.
Answer:
turning it I think.........
249 Zeros in the expansion of 1,000