Apowerboat less than 39.4 feet long is anchored at night. from which direction(s) must a white light be visible? from above from behind only from straight ahead only from all directions

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

Ican interpret and represent the remainder in division calculations sensibly for the context (eg 27.4 in calculating average height in cm: $27.44 if it represents an amount of money) solve the following problems. 15) the wildlife park charges $25.50 dollars per person to enter their park if the park made $15096 dollars today, how many people entered the park? 16) ms adams plus 2,230 other keen runners ran a marathon: between them they ran 94817.5km. how many km did each competitor run?

Whats is the value of the variables ?