What is the approximate average rate of change for f(x) = 15(1.5)* from x = 2 to x = 5?

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?