Write three million and nine tenths in standard form

How can you use negative numbers to repel resent real-world problems?

1.5 4.5 13.5 40.5 ... what is the seventh term in the sequence?

I'm having a hard time answering this question. What is (12x12) + 48?

A car uses an average of 8 litres of fuel for every 100 km travelled. At this rate, how many litres would the car use to travel 250 km?

Group of people are taking the train home 19 people get off the train, 17 people then get on. now there are 63 people on the train. how many were there to begin with?

What is 74.8+t=569 what is the answer for that

Sal wants to save a minimum of $1200 over the summer by saving $125/wk. He has saved $230 so far. About how many weeks will it take Sal to save enough money? A. at least 12 wk B. at most 12 wk C. at least 8 wk D. at most 8 wk

What is the cube root of - 1,00001278?

Steve, Mark, Melissa, Joe, and Mary are in a group. They randomly line up at the door. What is the probability that the first person in the line is a girl?

Divide X^4 + 2x^2+1 by x+1