Urgent matlab solution

A normograph enable the analyst to select an organic modifier/water mixture that has approximately the same mobile phase strength as the original eluent mixture. Use the following normograph to identify: a. The methanol/water percent ratio used for this laboratory b. The equivalent acetonitrile/water percent ratio. c. The equivalent tetrahydrofuran/water percent ratio. Make sure to place the marker at the corresponding percent composition value marked by the scaled line. Your marker shall be place at the center of the line that correspond to that scale. 0 10 20 30 40 50 60 70 80 90 100 ACN/H2O 0 20 40 60 80 100 MOOHHO 10 20 30 40 50 50 70 80 90 100 THFM20 10 20 23 25 30 31 35 40 50 60 70 80 90 100