The expression 2x and x² have the same value for only two values of x. What are these values?​

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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 (%).

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?