Answer:

Step-by-step explanation:
Step 1: Write expression

Step 2: Simplify Parenthesis

Step 3: Exponent Exponents

Step 4: Simplify

Answer:
I only have number 2 but it's C
Step-by-step explanation:
You have to multiply 18.25 3 times since volume of cube is length * width * height
Answer: C.V=C1.V1 +C2.V2
Step-by-step explanation: C=(C1V1 + C2V2)/V -> C=(20%.V+25%V)/2V-> C=22,5%
Answer:
C=2πr
Step-by-step explanation:
The circumference is the total distance around the circle.
C=πd but d = 2r.
:.C=2πr.