Gina has filled 3/8 of the space in her computer's memory what fraction of the computer's memory is still open

Me n o w. i need t h i s. 10 points

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.

What else equals 42 and 30 for multiply