what equivalent expression was used
3y+4y

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?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?