exam Maths Puzzle Numerical Ability

I need to write an ECR with the following question:

At an amusement park, each visitor receives one of four different toy animals. A visitor has an equal chance of receiving an

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exam Other Question
A bricklayer and an eectrician together 90 hours working on a new house. If the bricklayer earns $12 per hour, the electrician earns $16 per hour, and the wner pays them a total of $1350 for their work, how many hours does each worker spend on the house? i need to graph these three but i dont know how?

there all supposed two be graphed on one graph

(there three things to this problem)
y=2x^2
y=2(x-1)^2
y=2(x+3)^2

(there