At Walmart, Marcy spends $52.75. There is a 6% sales tax on all purchases. Today, there is a markdown of 16% on all items. How m
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So now its
but you want it in y=mx+b so
add x to both sides so that you have y on its own
so now it's
but you want it in y=mx+b so
add x to both sides so that you have y on its own
so now it's