Kailey wrote 8,912,000 in scientific notation as 83.12*10. Which statement best describes Kailey's work?

How many 10's in 1900?

After a store marks up the wholesale price of an item by 75%, the retail price of the item is $350. A month later, the store puts the item on sale for 20% off the retail price. Two weeks later, the store offers 30% off the sale price.

What is the value of [3.6]?

Sophia is scheduled to work 4 hours each day, Monday through Friday she also works 8 hours on Saturday she has four weeks off work each year. How many hours will Sophia work each year? There are 52 weeks in one year

How much water must be added to 12 L of a 40% solution of alcohol to obtain a 30% solution

How to rename the fraction part of the problem

If 120% of a is equal to 80% of b, which of the following is equal to a+b?

Suppose x and y vary together such that y = 2 x + 11. Suppose x varies from x = 2 to x = 8.5. a. Over this interval, how much does x change by? b. Over this interval, how much does y change by?

The probability of event A is 0.2 and the probability of event B is 0.6 which event is most likely to occur

Two cities are 15.7 cm apart on a map that has a scale of 1 cm : 14 km. These cities are 211.4 km apart.