During testing of a certain brand of air purifier, the amount of smoke remaining (as a percent of the original amount)tmin after the start of the test was given by the following function.

A(t) =0.00006t⁵+ 0.00468t⁴0.1381t³+1.934t²17.63t+103

Compute the following values.

A'(10)=(-4.66 is the answer I got that is right)

A''(10)= ( I am getting this wrong. I have -.0002- I need help with this part)