You went shopping for classroom supplies. You bought 255 blue pens, 100 red pens, and 189 green pens. How many pens did you buy in all?

Round 392,153 to the nearest hundred thousand

3 to the power of 2+12: (6-3) * 8.

The admission fee at a county fair is $2 for children and $4 dollars for adults. Suppose that on the last day, 1600 people enter the fair and $5000 is collected.

Use the subtraction property of equality to complete the following statement if RS + St = RT then RS =

The solution set of this inequality? -2x+7<23

It is estimated that almost ___% of collisions involving a vehicle and a train were at crossings where warning devices such as lights, gates and bells were in working order.

A hose fills a hot tub at a rate of 2.87 gallons per minute. How many hours will it take to fill a 328 -gallon hot tub?

A 16 pound bag of dog food normally sells for $16.98 it is on sale for 18% off the regular price what is the discount

6. Write an expression that is equivalent to 4 + 3 (5 + x).

Which is greater, 300 kelvins or 25 degrees Celsius? Showhow you got the answer