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Maths Puzzle
Numerical Ability
my question is:
write the equation of a line that has a slope of 2/3 and passes through point (6,-3).
my answer was y+3=2/3(x-6)
is that right?
thanks for the help!
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book Other Question
The price of a refirgerator is $1,200. If the rate of inflation in the next three year averages 3% per year and the real cost of the refrigerator remains unchanged in that time, what will the price of the refrigerator be in three years?
i really dont get properties what kind of properties are these?
10)7(8-3)=7(5)
13)(6+9x=15x
14)(7-4)(6)=3(6)
15)xyz=1xyz
16)8+5=(4+4)+5
17)if 6+3=9 and 9=3(3), then 6+3(3).