Jim has 19700 g of sand in his sandbox. he brings home another 6300 g of sand from the beach to add to his sandbox. How many kilograms of sand does Jim have in his sandbox now?

What percent of the circle below is shaded?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer