Answer:
Jessica should consume more of good A.
Step-by-step explanation:
Jessica spends all her income on two goods, A and B.
The price of A is $5, and the price of B is $7.
At the current consumption bundle, the marginal utility of A is 10, and the marginal utility of B is 21.
The total utility is maximized when the ratio of marginal utility and price of the goods consumed is equal for all the goods in the bundle.
The ratio for Good A
=
![(10)/(5)](https://img.qammunity.org/2020/formulas/mathematics/high-school/xgmvgtbnnuhgtjofgsmvofcw1of424h2m1.png)
= 2
The ratio for good B
=
![(21)/(7)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rblbo0ufnzlkilc6es04akgm115fhkonsh.png)
= 3
Since the ratio is higher for good B, the consumer should shift from consumption of good B to good A until the ratio is equal for both the goods.