The price of a gallon of unleaded gas has dropped to $2.83 today. Yesterday's price was $2.89. Find the percentage decrease. Round your answer to the nearest tenth of a percent.

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Maryann’s friends loved her bulletin board, and 4 of them asked her to make one for their homes. she offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters. how many kilograms of burlap should maryann collect to complete the bulletin boards for her friends? maryann should collect kg of burlap.

Y=x+2 4x+3y= -36 system of equation