The area of a rectangular rug is given by the trinomial r^2-3r-4. What are the possible dimensions of the rug?

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?

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)