In the following exercises, translate to a system of equations and solve.
421. Translate to a system of inequalities and solve.
Andi wants to spend no more than $50 on Halloween treats. She wants to buy candy bars that cost $1 each and lollipops that cost $0.50 each, and she wants the number of lollipops to be at least three times the number of candy bars.
(a) Write a system of inequalities to model this situation.
(b) Graph the system.
(c) Can she buy 20 candy bars and 40 lollipops?
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