A store’s revenue from selling skateboards is determined by multiplying the number of skateboards by the cost per skateboard. The revenue, r,
from selling x skateboards (where x ≤ 50 ) is r = x(50 − 0.2x).
How many skateboards need to be sold to have a revenue of $480?

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

What is the value of x? enter your answer in the box.

If you draw a card with a value of three or less from a standard deck of cards, i will pay you $43. if not, you pay me $11. (aces are considered the highest card in the deck.) step 1 of 2 : find the expected value of the proposition. round your answer to two decimal places. losses must be expressed as negative values.