Ill mark brainilest if correct What is 221,000,000,000,000,000,000 expressed in scientific notation?
2.21 × 1021
2.21E20
2.21E21
2.21E-20
2.21 × 10-21
2.21 × 10-20
2.21 × 1020
2.21E-21
SELECT ALL CORRECT ANSWERS

the 5 first are right

Step-by-step explanation:

answer: 0.95, d

step-by-step explanation:

first, you have to combine the percentages of costumers ordering pizza or salad. 25% (percent of salads ordered) plus 70% (percent of pizzas ordered) is equal to 95%. then, turn 95% into a fraction: 95/100. lastly, divide 95 by 100 and you will get 0.95, d.