The mass of Mars is about 6.421x10^20 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Mars is the mass of the sun? Give your answer in scientific notation.

1+3+5+7 + ... + 1003 = what is the answer?

chuck's coin box contains only pennies and nickels. if he jas 66 coins worth 2.38. how many of each type of coin foes he have

Two ratios by entering less than greater than or equal than 16 to 15, 30 to 80

Product of 10 and five less than a number is greater than 20

12/5 times 25/24 equal

What is the equation of a line in slope-intercept form with a slope of - 3/4 and a y-intercept of - 2

What is y=-2x+1 y=-x^2+4

Leigh will use 16 connecting cubes to make a model of a playground. The model will be in the shape of a rectangle and will have a height of one cube. In how many different ways can Leigh make the model of the playground?

The ratio of chocolate cones to vanilla cones sold at an ice cream shop is 5:4. If 54 cones were sold, how many were chocolate?

62dividw 7 what remains number