Hi I need help with all 4 question please

compute the definite integral as the limit of Riemann 16 sums. 3) ( Vx - 3) dx 1) [ (5x-1) dx Evaluate the definite integral and interpret the result. 2 ) [ " ( x 3 - 4 x ) dx 10 1 1 12 Evaluate. 25 1)[ 31/ x dx 6 - 5 4 -3 -2 -1 12 345