14. please help me out ill mark u brainlist

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4

Can someone me with my math problem pls my teacher is on my back about this