What is the value of the expression a) 12(3+13)= 192
b) 12(3+4+5+...+12+13)= 1,056
c) 12(1+2+3+...+12+13)= 1,092
d) 12(3)•12(13)= 5,616

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?

What is the measure of angle x? 37° 82° x°