When is etimation an effective way to determine an answer

The area of the Pacific Ocean is more than 60 million square miles. What is that in scientific notation?

Can their be smaller integer than 0.5

A certain medicine is given in an amount proportional to a patients body weight. Suppose a patient weighing 159 pounds requires 212 milligrams of medicine. What amount of medicine required by a patient weighing 129 pounds?

Whats 10/3 of 5?

Perform the following facility capacity problem. In planning the opening of your restaurant, you estimate that the restaurant's total area should allow each customer 20 square feet of dining space.

What is the next number in the sequence of 12, 13, 15, 17, 111, 113, 117, 119, 123?

There are 6 gray keys for every seven blue keys write the possible ratios for gray to black keys

What formula do you use to find the volume of a triangle with a triangle base?

What is 6.825 as a mixed number in simplest form

Mark wants to paint a mural he has one and 1/3 gallons of yellow paint 1 1/4 gallon of green paint and 7/8 gallons of blue paint mart plans plans to use 3/4 gallons of each paint color how many gallons of paint will he have left after painting the