Which one of the numbers is not written in scenintific notation A: 0.1 x 10 to the 3rd power
B: 3.2 x 10 to the 3rd power
C: 2.1 x 10 to the second power
D: 5 x 10 to the second power

A: 0.1 x 10 to the 3rd power

Step-by-step explanation:

it will be decay because it is lower than 1 which means that it will decrease the answer not increase it.

the answer to the expression is 83

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or