Which expression is equivalent to (5x + 2) + (4x - 3)? A.6x+2
B.7x+1
C.9x-1
D.11x-3
E.20x-6

Ineed me i stuck and i don’t want to get it wrong

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? 0.62 0.78 0.84 0.96