PLEASE HELP! I don’t understand this problem TT

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided