Bianca puts $10 in a savings account each month and an extra $20 when she receives money for her birthday. Which expression represents the amount she has saved in one year

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Can someone me with this problem i don't understand i need