Gabrielle's office had already recycled 7 kilograms this year before starting the new recycling plan, and the new plan will have the offi
recycling 1 kilogram of paper each week. After 21 weeks, how man
kilograms of paper will Gabrielle's office have recycled?

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.