10 more than a number c is 3, I need help on how to find the equation.

Plz hurry evaluate the expression a+b where a=8 and b=19

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities