Answer:

Step-by-step explanation:
using the rule of exponents
⇔ 
f(- 5) =
=
= 
Answer:

Step-by-step explanation:
Recall that the formula for density is:

therefore for this case we have:

Answer: ×/2 + 9 =
Step-by-step explanation: when a sentence needs to be visualized it is best to strat from the outside.
So if nine more than blah blah equals 21,
... +9 = 21
Answer:
4.5cm
Step-by-step explanation:
Circumference = 2
r
28.3=2
r
28.3/2
=r
4.456
Answer:
86
Step-by-step explanation:
let the numbers be x,x+2,x+4,x+6
Then x+x+2+x+4+x+6=332
4x=332-12=320
x=320/4=80
so numbers are 80,82,84,86