The amounts of industrial waste generated in a region during two years were 31,900,000 tons and 53,400,000 tons. What was the total industrial waste generated over theses two years in the region, expressed in scientific notation

Find the greatest common multiple of 28 and 48

What is the product of - 2 1/4 and 4 1/2

the combined length of 3 pieces of a board is 147 inches. the lengths of the pieces are in the ratio 5:7:9. what is the difference in inches between the longest piece and the shortest piece?

You have a coord grid that is 96x96. what is the minimum number of bits that you will need to encode a coordinate in that space

Anna enjoys dinner at a restaurant in Washington DC where the sales tax on meals is 5%. She leave a 20% tip on the price of her meal before the sales tax is added and the tax is calculated on the pre-tip amount. She spends a total of $65.

In ΔMNO, the measure of ∠O=90°, the measure of ∠M=39°, and MN = 5.3 feet. Find the length of NO to the nearest tenth of a foot.

A pie was cut into eight equal slices. If Ruben ate 3/4 of the pie, how many slices did he eat

The sum of 4 times a number and 5 equals 6

The sum of two numbers is fifteen. The product of the two numbers is thirty six. Find the numbers

Given: x + 2y = - 6. Solve for x. What is the coefficient of y?