What is 8.2/8688? math questin

Evaluate f (4) for the function f (x) = 2x-3

John lent 20,000 to Emily. She would reimburse John in 2 installments, first a payment of 15,000 in 2 years and 6 months, and 12,000 in 4 years.

A formula exists for a monetary return on an investment of continuously compounded interest. If the interest is compounded only once a year, use the following formula. Suppose you have $100 to invest, but started investing only $50.

The length of a rectangle is 10 more than twice its width. The perimeter is 50 cm. Find the width and length

You need a total of 50 pounds of two types of ground beef costing $1.25 and $1.60 per pound, respectively. A model for the total cost y of the two types of beef is y = 1.25x + 1.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.