C...................................................................................................................................
Answer:
question 12 is answer B
question 13 is -8x^3
Step-by-step explanation:
exponent rule 
Answer:
650-700 meters
Step-by-step explanation:
x-60 is the length. Multiply you get x2-110x=3000 this is a quadratic equation.
Answer:
55.8
Step-by-step explanation:
44 ^ 2 = 1936
b ^ 2 = 55 .8 ^ 2
51 ^ 2 = 2601