exam Maths Puzzle Numerical Ability

graph the system of inequalities
y is greater than or equal to -3
x is greater than or equal to 6

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exam Other Question

Using the law of Cosine or Sine, solve:

a=60 b=x c=20 Angles A=x B=x C=34.0 degrees SSA
I tried A=sin-1(60sin34.0/20) but it said error. Pleas help
Steven invests $2000 into a GIC which will double every five years, wheras Dana invests $1000 into a GIC which will triple evry three years. How many years will pass before they have the same amount of money?