What does math lock mean?

What is 15 percent 0f 750000? How many images are formed when two mirrors are placed at a right angle? In what chapter in the Bible is frankincense found? How does p equal quiet? What is the midpoint of -1 and -1? What is the length and width of triangle When the perimeter is 79.4 and length is 1.7 more than width? What is the best estimate for 1162 and 78? What solid figure has 2 curved edges? How do you find circumferince of half a circle? What are the seven scaments called? What is 22 over 33 in lowest terms? What is the swift code for Mandiri KCP Denpasar Udayana? How do you multiply 7 square root 3? What number is at the bottom of a yazoo bottle? What shape has 1 curved side which is always an equal distance from the center of the shape? What problem cannot be represented by a linear function? How do you write 1to 1000? What is one window operation? At height of h meters you can see v kilometers to the horizon These numbers relate by the equation v equals 3.5 sqrt h a person can see 357km to the horizon from an airplane window how high is the air? A train 160 m long crosses 160 m long platform in 16 secondsThe speed of the train is?