Adolphin went 15 feet below sea level to catch a fish. a shark went twice as deep, then swam down an additional 10 feet to catch a larger fish. which expression represents the shark’s position in relation to sea level?

1. 2(-15) + (-10)
2. 2(-15) + 10
3. 2(-15) - (-10)
4. 2(15) + (-10)

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is