Find the variance and standard deviation of the given set of data to the nearest tenth.
{440, 130, 280, 500, 150, 640, 760}
a) variance = 222.7, standard deviation = 49,595.9
b) variance = 49,595.9, standard deviation = 24,798
c) variance = 49,595.9, standard deviation = 222.7
d) variance = 57,861.9, standard deviation = 240.5

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x