Mercury: 3.3022 x 10^23 kg Earth: 5.9722 x 10^24 kg venus: 4.8685 x 10^24 kg Mars: 6.4185 x 10^23 kg

What is the average mass of all four inner planets? write your answer in scientific notation

Josephine has a great garden with and area of 2x2 + x - 6 square feet

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Round each of the decimals to the nearest hundredth a. 0.596 b. 4.245 c. 53.6843 d. 17.999