List four ways that the environment nurtures or thwarts mental ability, and give an example of each:

Explanation:

4 Environmental Effects

1) Poor Parental Care

(Ex: Of a pregnant woman takes certain drugs, malnourished, contracts infections, smokes, drinks or is exposed to second hand smoking, her child is at risk of having learning disabilities and a lower IQ).

2) Malnutrition

(Ex: The average IQ gap between severely malnourished and well-nourished children can be as high as 20 points).

3) Exposure to Toxins

(Ex: Dust, contaminated soil, lead paint, old lead pipes can cause brain damage and damage to the nervous system).

4) Stressful Family Circumstances

(Ex: A father who does not live with the family, a mother with a history of a mental illness, parents with limited work skills, a history of stressful events, domestic violence --> lead to reduced intellectual competence).

6 packages of hot dogs and 6 packages of buns

Explanation:

The indifference curves follow the 45-degree so the ratio for the hot dog:bun will be 1:1. Each package of hot dog gives 8 hot dogs while each package of the bun gives 8 hot dog buns. The ratio of hot dog package: buns package that Sue needs will be:

(number of hot dogs every package)/ (number of buns every package) * (ratio of hot dog : bun)

8/8 * 1/1= 1

The optimal choice package ratio is 1:1, then the amount of food Sue can buy will be: 48$/ (1*$5 + 1*$3)= $48/$8= 6 package.

The optimal choice is 6 packages of hot dogs and 6 packages of buns