Answer:
It depends on the person, some people on brainly are here to help. I am very sorry that you did not get the help you needed. If you do need future help I am sometimes available and would be happy to help.
Answer:
Yes the integral can be evaluated by integration by parts as solved below.
Step-by-step explanation:

Taking algebraic function as first function and exponential function as second function we have

Answer:
D
Step-by-step explanation:
To find a situation for 60−15x≥7, look for a story where 60 is a constant value that is decreasing by 15 for a number of times and where equal to or at least 7 is an option.
A. x would be weeks and it would decrease by 7x. This is not it.
B. 15 songs packages would have x be the number of packages not the price. This is not it.
C. This doesn't work either because if you want to owe them less than 7 it would have the sign < not >.
D. You have 60 to spend and you decrease it by $15 for each hat you buy till you save $7. This is it.