Mark earns $400 a week plus 5% commission on all sales. which inequality represents s, what mark's sales must be in order for him to earn at least $700 for the week?

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

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What is the value of x in the this question ?