What do you mean by apex in math?

What does poorly circumscribed mass mean? What measurement would you use to measure the length of a fish in a aquarium? What is the greatest number you can make using these digits 5 7 and 2? What is half a billion in word form? How many times do 8 go into 120? Is a rhombus and trapezoid both 2-dimensional figures? Lines that have the same slope in math? 70 miles per hour equals hom many feet per second? Why do we use gradient of a line? How would decreasing speed show up on the distance versus time graph? How many can you miss out 100 questions to get B? How much would you have to invest today in the bank at an interest rate of 8 percent to have an annuity of 4800 per year for 7 years? What is the horizontal length of one cycle? 20 meters times 20 meters equals to how many feet? What percent is 80 of 20? How many lines of symmetry are there in Indian flag? How much is 4.40 in british money? How many miles are there in 2050 feet? How much time is between 7 55 and 8 23? Work out the percentage increase from 60 to 84?