Ireally need with this problem asap? i would be so grateful if you could !
in 2014 there were 659,000 people living in washington dc. in 2014, washington dc had 350 cars per capita (per 1000 people). the average greenhouse emission (carbon dioxide (co2) released in the air) by one car is 1.3 10^-2 tons per day. how much greenhouse emission took place in washington dc as a result of all the cars driven in 2014?

Find the total area for the regular pyramid ( follow the answer set up in the picture)

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?