What is the correct way to write 1,550,000,000 in scientific

Y=-2x+11 what is the slope of the equation?

Y = 8x + 168 show your work

In the data set below, what is the upper quartile? 3344466889

Number sequence of 2,7,8,3,12,9,

Parker needs cardboard to complete a project for school. He is looking for pieces that are 3 1/2 feet long. He discovered that he would need 8 pieces to complete the project.

What is the additive inverse of the polynomial 9xy^2 + 6x^2y - 5x^3? A. 9xy2 - 6x2y + 5x3 B. 9xy2 - 6x2y - 5x3 C. 9xy2 + 6x2y + 5x3 D. 9xy2 - 6x2y + 5x3

If you invested $500 at 5% simple interest for 2 years, how much interest do you earn? Show work and answer in complete sentences to earn full credit.

Sale amount 1250.00 and 6.5% sales tax

The total distance an object travels varies directly with the length of time it travels. If an object travels 24 meters in 9 seconds, how long will it take to travel 96 meters? A. 32 seconds B. 36 seconds C. 40 seconds D. 42 seconds

A polling organizations wants to sample the opinions of low-, medium-, and high-income people. Which sampling strategy is best suited for this purpose? A. convenience B. simple random C. stratified random D. systematic