Create the tables for each of the following relational algebra expressions.

Question $2\mathrm{.}1(4$ pts$)$

$($diastolic Blood pressure $<mn\; id="EditorElement\_845830">6</mn><mn\; id="EditorElement\_845831">5</mn><mtext\; id="EditorElement\_845792"></mtext><mi\; id="EditorElement\_845793">)</mi>$ subjects

Question $2\mathrm{.}2(4$ pts$)$

$(pedi,$ class$)$ subject

Question $2\mathrm{.}3(4$ pts$)$

subjects$\_$old $-$ subjects$\_$temp

Question $2\mathrm{.}4(4$ pts$)$

values $x$ cities

Question $2\mathrm{.}5(4$ pts$)$

subjects $|><mi\; id="EditorElement\_845550">|</mi>$ cities