This is a question on excel math, one third of gavin's nine umbrellas are open. how many of his umbrellas are not open?

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle