Which values are solutions to x<10 A. x = 18 and x = –11
B. x = 1 and x = 9
C. x = 15 and x = 18
D. x = 9 and x = 15

Sorry guys but as you have a small brain

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

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.