book Maths Puzzle Numerical Ability

explain how you would decide whether the product of three numbers is positive or negative

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book Other Question

To sketch the graph of y=-(x+2)^2+1, which "common graph" would you start with?

a. f(x)=x
b. f(x)=x^2
c. f(x)=x^3
d. f(x)=|x|
e. f(x)= sq rt x
f. none of these WHAT IS THE HIGHEST NUMBER THAT DIVIDES 245 AND 1029 BY GIVING A REMAINDER OF 5.