An expression is written as m−5(m+3) +7m. What is the value of the expression when m=x+1?
A
3(x−4)

B
3(x−6)

C
3(x−5)+1

D
3(x+5)+1

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

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

Aflagpole broke in a storm. 77 7 meters are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground at a point 2424 24 meters away horizontally