1/2−3(1/2+1)^2 need an answer in simpliest form

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?

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test