How many trainable parameters does the following model have?

model $=$ keras.models.Sequential$()$

model.add$($keras$.$layers. Dense $(20,$ activation$=$"relu", input$\_$shape$=[10]))$ model.add$($keras$.$layers.Dense $(100,$ activation$=$"relu"$))$ model.add$($keras$.$layers.Dense $(10,$ activation$=$"softmax"$))$