A metal bar weights 8.4 ounces. 93% of the bar is silver. How many ounces of silver are in the bar?

Chose the graph below that represents the following system of inequality’s

Can someone show me step by step how to do this?

The equation y= -16t^2+120 can be used to represent the fridge height above the ground where ti represents time in seconds after she threw the apple how long does it take the apple to hit the ground running your