How do I find this formula?

Trapizoid:b1=3 m; b2=4 m; A=7m2

Slope=5, through (3,13)

Slope = 1/4, y-intercept = 3

You are selling a 3-year-old model car. Your dealership is running a special by giving an 8 percent discount off the usual value of the vehicle. How much would you sell the car for?

Diana invested $3000 in a saving account for 3 years. she earned $450 in interest over the time period.

A gallon of unleaded gasoline weighs about 6 pounds. About how many ounces does 1 quart of unleashed gasoline weight?

What's 67890 + 5336882

What are the zeroes of f (x) = (x-1) (x+1) ?

Along thid river at wich two aproximate altitude ranges are tge gradients the steepest

You go out to eat and your bill comes to $123. The GST is 5% and you leave a 15% tip. How much would it cost altogether?

Approximately 33,500 citizens of the country died in automobile accident in 2015. Express the toll in deaths per day