after Tasneens birthday half of the cake was left over. Tasneen and her four friends are only allowed to eat one fifth of the half cake. What fraction of the whole cake will Tasneen and his friends have eaten after his birthday party?​

Addison painted her room. she had 5 0 5050 square meters to paint, and she painted at a constant rate. after 2 22 hours of painting, she had 3 5 3535 square meters left. let a t a(t)a, left parenthesis, t, right parenthesis denote the area to paint a aa (measured in square meters) as a function of time t tt (measured in hours). write the function's formula.