If a consumer has a budget of $30 and is evaluating two goods, A and B, with marginal utilities of 15 and 10 respectively, and prices of $5 and $2, which good should the consumer prioritize to maximize satisfaction per dollar spent?

To decide which good to prioritize, we need to look at the satisfaction gained from each dollar spent on goods A and B. The marginal utility per dollar spent is calculated by dividing the marginal utility by the price of each good. For good A, the marginal utility per dollar is 15 divided by 5, which equals 3. For good B, the marginal utility per dollar is 10 divided by 2, which equals 5. Since good B gives more satisfaction per dollar spent, the consumer should prioritize buying good B to maximize their overall happiness within the $30 budget.