Pls help me

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?

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8