Answer:
f^-1(x)=4x-40
Step-by-step explanation:
Answer:
Step-by-step explanation:
#1:

division sign means that we flip the fraction

now we can multiply all the constants together and all variables

now we can combine all the parts

#2:




5x-4-x=4(x+1)
5x-4-x=4(x)+4(1)
(5x-x)-4=4x+4
4x-4=4x+4
+4 +4
4x=4x+8
/4 /4
x = x+2
-x -x
0=2
The range for boys is 60 as for girls the range is 80. The median for boys is 90 and for girl 110.
Answer:

Step-by-step explanation:

Divide both sides by -3:

