The mass of the Earth, registered as a standard expression, is approximately 5.9742 - 1024 kg and the mass of the Moon is 7 348 - 1022 kg. How much tons of Earth's mass is greater than the mass of the Moon? Write an answer in standard words.

Which expression is equivalent to 2x^2+7x+4?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?