Write 0.0002839 in scientific notation.

What is: y=2x-3 y=2x+1

What is 0.375 as a fraction?

A bridge club had 22 members with a mean age of 68. Then two new members joined. One was 62 years old, and the other was 80 years old. How did the mean age change after they joined?

Every three days Marco fills up his car with gas. Every eight days he washes his car. On what day will Marco go fill his car with gas and wash it?

Write an integer for each situation. (In this exercise you must Wirte the + and Negative signs) 1.) A profit of $12 2.) 1,440 feet below sea level 3.) 22°F below 0 4.) a gain of 31 yards

Mrs. rosso has to travel 390 miles on a highway. she drives 130 miles in 2 hours

Sohan Lal, the truck driver, is travelling from Abu Dhabi to Dubai. He refills the petrol tank in Abu Dhabi. If the truck can run 495 km on 36 liter petrol. What distance will the truck cover in 35 liters of petrol?

problem solving lesson 6a seven digit number has a 0 in the ones place, a 6in the ten thousands place, an 8 in the millions place, and fives in each if the remaining places. What is the number?

a food manufacturer recently developed a new preservative to extend the shelf life of its perishable food items. It makes two batches of the perishable items. The preservative is added only to the second batch.

The diagonals of a rectangle are equal. always sometimes never