Answer:
Step-by-step explanation:
dont have a creative way but i just remember rise over run or 
hope this helps <3
Answer:
it is a 90 degree angle
Step-by-step explanation:
because the little square in the corner
Answer:
O Two times x minus seven plus ten
Answer:2x with and exponent of 3 -9x with and exponent of 2 +7x +6
Step-by-step explanation: