How to know a function from a non function

What's 11 fewer than 24?

Give me the answer for 2 1/5 times 4

What is the product of 4 2/3 and 11 and a quarter

What is greater 9.23 or 9.32

A patio was to be laid in a design with one tile in the first row, two tiles in the second row, three tiles in the third row, and so on. Mr. Tong had 60 tiles to use. How many tiles should be placed in the bottom row to use the most tiles?

There are approximately 3.33.3 million deaths per year in country a. Express this quantity as deaths per minute.

The quotient of a number dividend by 11 is 0.5

3. If Earth was 10 times farther away from the sun than it is now, which planet would it be closest to? (Assume all the planets are aligned with the sun and are on the same side of the sun.) Compare Earth's new distance to that planet.

What is the volume of a cylinder that has a radius of 4 cm and a length of 8cm

Find the gcf of the terms of each polynomial 6x^2+10