9x - 2x + 8 = 4w + 38 i only have about 4 questions left if somebody could me : )

2men and 7 boys can do a piece of working 4 days.it is done by 4 men and 4 boys in 3 days how long would it take for 1man or one boy to do it alone

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15