Answer:
Step-by-step explanation:
(+)(+) = (+)
(-)(+) = (+)(-) = (-)
(-)(-) = (+)
--------------------------------------------
(-1) + (+8)= (-1) + 8 <em>use the commutative property a + b = b + a</em>
= 8 + (-1) = 8 - 1 = 7
7
it’s kind of like 8-1 but it’s 8+(-1)
B
AD will be 20
2
2x is the slope which is just 2
Answer: A
Step-by-step explanation: true true true
1 1/7
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