Ok here are the problems I need help with
1)A revenue of $1500 is obtained from the sales of item A at $50 each and item B at $25 each. Write an equation that shows the relationship between the numbers of items sold.
2)An airplane trip is traveling away from its home airport at a constant speed. After 3 hours, it is 540 miles away Assuming it departed at t=0, write an equation representing the distance, “D” (in miles), at any time “t” (in hours).
3)A real estate sales agent receives a salary of $250 per week plus a commission of 2% sales. Write a linear model for the weekly income “y” in terms of sales “x”.
4)Machinery is bought new for $36,000 and is considered worth $2,000 as junk at the end of 10 years. Assuming a linear model for depreciation, write the equation of its value, “V” (in dollars), when “t” years have elapsed after the purchase.
Please label your answers with a number to represent the question you are answering. Please explain the answer too.