700 - 100 =600 she spent $600 worth of monthly payments. if there is 12 months in a year then 600 ÷ 12 = 50 so she spent $50 a month.
D
uses the the formula y=mx+b and m is the slope. b is the y intercept.
Answer:
I don't understand what the question is asking please expain
first one is C and second is D
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