A parking lot has 30 empty space. If the ratio of empty spaces to taken spaces is 10 : 7, how many spaces are there total?

What expression is equivalent to 1/2(2+3x-6)

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 (%).

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.