Consider the data for a simple project at Carlos$$ Lopez's real estate development$$ company, as given in the following table.

$$

Days

Activity

a

m

b

Immediate$$ Predecessor$($s$)$

Q

$7$

$10$

$12$

dash

R

$1$

$6$

$23$

Q

S

$10$

$12$

$16$

R

T

$1$

$5$

$7$

S

Part $2$

$$a$)$ The expected completion time of the project is

$$

enter your response here days $($enter your response rounded to one decimal$$ place$).$