Most evenings after dinner duarte spends 30 minutes playing chess with his dad. write an equation for the number of minutes, m, that duarte spent playing chess with his dad if they played chess together e evenings.

T= total played
e= # evenings played
m= # minutes played

Total equals number of evenings played multiplied by number of minutes plated per evening.

EQUATION:
t=e * m

EQUATION (if 30 minutes per evening):
t=30e

Example:
3 nights, 30 minutes played

t= 3 * 30
t=90 minutes total played

Hope this helps!  :)