What is -4/2 (-4 over 2) in simplest form? really appreciate for ur : )

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?

What is the 12th term of b(n)=-4-2(n-1)

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg