Can someone me i don’t understand this quick 25 points i really need asap

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

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

Which of these triangle pairs can be mapped to each other using a single translation? cof hn