Evaulate the definite integral (the s is the integration symbol with indicated values)
4
s (())/(t^4) dt
1

Simplify the expression. -2/5(10+15m-20n)

9/10 divide by -3/15 as a mixed number

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8