exam Maths Puzzle Numerical Ability

Graph the compound function below on the axes at right.
y=f(x)={3 , -1 <= x <=2}
3x+1, x > 2

all under same brackett

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exam Other Question

cost for a long-distance telephone call is $0.36 for the
first minute and $0.21 for each additional minute or portion thereof. Write an
inequality representing the number of minutes a person could talk without
exceeding $3.
how do you express 1698 as a roman numeral?