What is the percent of increase from 45 to 70? 21.7%

35.7%

55.6%

64.3%

55.6%

Step-by-step explanation:

1. The difference between 45 and 70 is 70-45=25 (If it is postive is an increase, if negative a decrease)

2.The base of comparison is the original number: 45

3. With both, you divide the difference with the base:
25/45 and you multiply it by 100 to get a %

4. Equation: ((70-45)/45)*100 = 55,55555555555

5. Rounded to the nearest above: 55,6%

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.

answer: group b.

step-by-step explanation: