Is this relation also a funtion? yes or no {(3,-,-,,-1)}

Anyone know? is appreciated! will mark brainliest if correct!

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

Indicate the formula for the following conditions: p^c(n, r)=