Calvin is setting up a model of the solar system. He positions a cardboard sun at one end of a school hallway and Pluto at the other end, 20 m away.
Calvin knows that Pluto is 39.5 AU from the sun and Jupiter is 5.27 AU from the sun
To make his model scale, how many meters from the cardboard sun should Calvin place Jupiter? (record your answer to two decimal places or nearest hundredth)

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.