Vanessa put together a model train with 25 train cars. Each train car is 80 mm long. How many meters

long is Vanessa’s model train if there are no gaps between the cars?

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Find the distance between the pair of points a(-1,8) and b(-8,4)