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The flask pictured below can hold up to 100 mL of water.
How much water is in the flask?
`60\ text(mL)` | `70\ text(mL)` | `80\ text(mL)` | `90\ text(mL)` |
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`text(80 mL)`
`text(Flask is fully filled until the 60 mL mark.)`
`text(Flask is half filled between 60-100 mL marks.)`
`:.\ text(Volume of water in the flask)`
`=60 + (1/2 xx 40)`
`=80\ text(mL)`