Answer:
30.3
Step-by-step explanation:
For this case we must indicate the value of the following expression, expressed in scientific notation:

We have that for multiplication properties of powers of the same base, the same base is placed and the exponents are added:

Then, rewriting the expression we have:

Answer:

Answer:
72.50/100 X 80 = 58
total cost with mark down $58
We are asked to determine the correct factorization of the given trinomial which is 5x² - 5x -100. The solution to this problem is shown below:
5x² - 5x - 100 let the problem equal to zero such as:
5x² - 5x - 100 = 0 , factor out 5 from the given trinomial
5(x²-x-20) = 0
5 (x-5)(x+4) = 0
The correct factor is 5(x-5)(x+4).