exam Maths Puzzle Numerical Ability

Do the points in each set lie on the same line? Explain your awnser.

P(4,2),Q(-3,2),R(2,5)

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exam Other Question

Solve each of the following systems by addition. If a unique solution does not exist, state
whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
The bus fare in a city is $1.75.people who use the bus have a option of purchasing a monthly copoun book for $28.00. with the copoun book, the fare is reduced $o.75. determine the