Help needed. Please find the mode of operation for each of the question. Please show workings

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85

The graph shows the amount of total rainfall at each hour what was the total rainfall amount after three hours