Answer:5
Step-by-step explanation:
f(4)= ((1/2)*4)+3= 2+3=5
USE SUBSTITUTION FOR 3A+4S=57, 2A+8S=86 to find adult=$7 student=$9
CHECK STEP: 3(7)+4(9)=57
21+36=57 TRUE
Cant see pic properly.if that is the graph of equation
g(x)=-3x+5
then i dont thinks so because there is no y intercept
that line is parallel to y axis
11yd is the diameter and circumference is 2πr = 2π(d/2) = πd = 11π yd