Luara is 5 years older than her sister elisabeth. she figured out that in 4 years she will be two times older than elisabeth. how old are they now?

Ined this is due tomorrow and i dont know the answer can you find all the exponents

True or false look at the picture pls : /

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 (%).