“4 children went to buy 4 meals, x and x2 ordered the meal and y1 and y2 ordered the sando, x1 and x2 have to pay 50 each but only had notes of 100 and 50, y1 and y2 had to pay 35 and 45 respectively, but only had notes of 100 and 50, there was a delivery charge of 4, the total of the bill was 184, if x1 and y1 paid their 100’s (for a total of 200) how much should y1 and y2 pay x1 and x2

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

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 (%).